FLIP ‘PHONES

Emily Carroll is a 2016 medical-school graduate now finishing her residency in New York City. She finds crossword constructing ‘‘a nice stress reliever in the little free time I have outside the hospital.’’ This puzzle was initially intended for a weekday (15 x 15 squares), but when she couldn’t make the theme work satisfactorily, she came up with more examples and expanded it into a 21 x 21. This is Emily’s seventh crossword for The Times and her first Sunday. — W.S.

ACROSS

1 Crawling marine

mollusk 8 Victorious cry

14 At first, say 20 So-called “Crossroads of America”

21 Wife in F. Scott Fitzgerald’s “Tender Is the Night” 22 Uprights, e.g.

23 Low end?

25 What sunblock blocks, briefly 26 Rushes 27 Hangout on

“The Simpsons” 28 One of two for a buck? 30 Somewhat, slangily 32 Go astray

33 Part of town that may be dangerous

35 Tater ____ 38 Extraterrestrial from the planet Melmac 40 Emphatic ending with yes or no 42 Bulging bicep, in slang

43 Raise

44 Wet 48 Agreement for exporting essential oils?

51 Raggedy ____ 52 Around an hour after noon 54 Spend all weekend solving crosswords, say, with “out” 55 Dummkopfs 56 Movie-rating org. 58 Semi-essential part? 59 Driver of “BlacKkKlansman”

61 Most pallid 63 Exercise program done in formal attire? 66 Horse operas

68 Top squads 69 Sports-page listings 71 Avoid cooked foods 75 Beyond prim and proper 77 Sturdily built friend on “Friends”? 79 Relative of a flute 82 Statement often starting “I ...” 84 Egg head?

85 Train transportation 86 “Baby Blues” or “Rhymes With Orange”

87 PC key

89 Rita who played Anita in “West Side Story” 92 Setting for many Twins games: Abbr. 93 Spotted animal with a lot of sore spots? 96 Squirrels away 98 “What ____?” 99 Maestro’s gift

100 ____ Rousey, first female fighter inducted into the U.F.C. Hall of Fame 102 Animal in un zoológico

103 First letter of “tsar” in Russian 104 Father of the Constitution

106 PC key 108 Extended family 112 Utterly useless 113 Totally abandon one’s plan 114 Letter-shaped fastener

115 Laugh riot 118 Cause of a work stoppage at a shoe factory? 123 Tropical scurrier 124 Put on a pedestal 125 Charm

126 A cobbler might use one

127 Expunge

128 Word before shot or plot

DOWN

1 Some turban wearers 2 Film composer Morricone

3 Doe follower, in song 4 Breaks along the Panama Canal? 5 “Well, ____-di-dah!” 6 Commercial prefix with lever 7 “That’s so-o-o gross!” 8 Is a willing participant? 9 Runs out of gas 10 Here, to Henri 11 Underworld boss 12 Troy story

13 Joan of Arc, at

the time of her death 14 Fit for a king

15 Skin care brand 16 Attorney general under both Bush 41 and Trump 17 Santa ____ winds

18 ____ sauce 19 Symbol on a Mariners cap

24 ____ d’oeuvre 29 Slangy affirmation 31 Rare solo voice in opera

33 Arthur with a Tony 34 UnitedHealthcare competitor 35 Back-comb 36 Multi-time Pulitzer finalist, including for the volume “Lovely, Dark,

Deep: Stories” (2014) 37 Meet on the down-low 39 Confines

41 Fixes up, in a way 43 Circuit-board component 44 Fearsome snake 45 Stoned 46 Dumbstruck 47 Undiluted

49 Like Easter Island 50 Full of enthusiasm 53 Construction girders 57 Not without sacrifice 60 Call into question 62 Permeate

64 Shout from a lottery winner 65 Kid-lit character with the catchphrase “Thanks for noticing me”

67 In regard to

70 Big name in

2008 financial news 72 Jurisdiction 73 Stomach 74 Painful paintball mementos 76 Rapid movement of the eye from one point to another 78 Surrealist Tanguy 79 Groups in the quarterfinals, e.g. 80 Loses enthusiasm 81 Elicit a smile from 83 Last Oldsmobile ever produced 88 Sent

90 Pearl clutcher’s cry 91 Bit of brewing equipment 94 “Sure thing, dude!” 95 Boatload 97 Untangle

101 “In your dreams!” 104 2016 film set in Polynesia 105 Reckon, informally 107 Section of a high school yearbook 109 Native Alaskan 110 Popular corn chip 111 What radio signals travel through, with “the” 112 Spring’s opposite 113 Nongreen salad ingredient 115 Merest taste

116 Part of a sci-fi film’s budget 117 French way

119 The Braves, on scoreboards

120 One of many extras in air travel nowadays 121 A little fun? 122 Letters on some luggage to New York