Pittsburgh puzzler

ACROSS

1 Fake IRS call, e.g. 5 Rum-flavored cakes 10 Hard worker

16 British “Bye!” 17 “Fighting” college team 18 Incomplete

19 With 24-Across, poem first published on July 4, 1895

21 Intense rant

22 Latin apology opener

23 __ Pérignon 24 See 19-Across

26 Imposing entrance

28 Gore Vidal’s “__ Breckenridge” 29 Stud farm stud

30 “Oh, give me __…”

32 Big Band and Victorian, e.g. 35 “Game of Thrones” patriarch Stark 36 Where 50-Across wrote the first version of 19/24-Across

40 Set aside

41 Scandalous gossip

42 Custom-built, briefly

43 Playing card with a letter

44 Imam’s text

46 “Goosebumps” series author

50 Author of 19/24-Across

53 Recurring line from Pepys, with “and” 54 Short-tempered

55 Chance occurrence, quaintly

56 Giant bird of myth

57 Home buyer’s debt: abbr. 58 Extremely

59 Visionary metaphor in 19/24-Across inspired by an 1893 visit to the World’s Columbian Exposition

64 __-magnon 65 Mmes. in Mexico 66 Collective values 67 Mounted on 69 Slipper or sneaker 71 “Just a moment…” 75 Inspiration for 19/24-Across (and its original name)

78 Tax whiz, briefly 79 Golf expert, say 80 Has a passion for 81 Organist/composer whose hymn tune “Materna” was used for the final version of 19/24-Across

84 Wine flavor component 85 Rolls Royce rollers 86 Great Plains tribe 87 Ticks off

88 “Just like me” 89 Geeky type

DOWN

1 Passport mark

2 Small role for a big star 3 On __: going wild

4 Scratch, perhaps

5 Sporting a pair of shades?

6 Composer Khachaturian

7 Tiny unit of data

8 Hal who directed “Shampoo” and “Being There”

9 Most transparent

10 Ballet garment

11 “Right away, boss!”

12 __ Elba of “The Wire”

13 Taking it easy

14 Stands the test of time

15 Nearly fell

20 Montana neighbor

25 Senior advocacy grp.

27 Yarn

28 Highway divider

31 Museo del Prado site

33 Biceps jewelry

34 Doesn’t get involved

36 Chocolate bean

37 1980 running gold-medalist Steve 38 Jazz great Coleman

39 “__ creature was stirring…”

40 Fifth Avenue retailer 44 Skewered foods

45 Mine vehicle

46 Surgically remove

47 “With this ring __ wed”

48 Closes in on

49 Catch sight of

51 Jewish wedding dance

52 Simon of “Uncle Tom’s Cabin” 57 Highest point in the Calif. Cascades 58 Shop clamp

59 Craftsperson

60 Searching (for)

61 Postpaid encl.

62 “God willing!”

63 Like most music

64 Per __ (each)

68 Tubular pasta

70 Gives the go-ahead

72 Sudden rush

73 Fielding flub

74 Like secret messages

76 Recipe direction

77 Linking brainstem part

78 Signaled, on stage

82 3-D med. scan

83 Got the gold