The New York Times crossword puzzle

Across

1 Schooner

feature

5 Shock treatment, for short

10 Subject of the 2011 Jon Roberts memoir “American Desperado,” with “the”

13 Tongue-incheek

14 “So sad …”

15 Stamp collector’s purchase 16 Impetus behind a prank, maybe

17 One going the distance?

19 Refuse to talk

21 A ton of bricks?

22 Source of heart-shaped leaves

23 Like water at the shallow end of a pool

25 Name on a vintage red, white and blue cap

27 Weighs (down) 28 Lead-in to a crazy idea

29 Part of an old circus act

32 Realm of the Valkyries

33 2007 film with the tagline “The last man on earth is not alone”

34 Competitor of Dick’s Sporting Goods

37 Be a rat

39 Dish rack accessories

41 Eel order at a sushi bar

44 “Land sakes alive!”

45 Severely self-disciplined sort

46 Appear

47 Men’s grooming items 50 “Sir” might be found at the start of it

51 Colleen

52 Investor’s “No deal”

53 Mario who wrote “The Godfather” 54 5-Across administrator 55 Makeover result, maybe

56 Go on and on bitterly

Down

1 Eccentrics

2 Victim of a 20th-century environmental tragedy

3 Small but full of fight

4 Some bars returned to again and again?

5 Conducive to mold, maybe

6 Org. established partly in response to Rachel Carson’s “Silent Spring” 7 The “Tannen” of Tannenbaum

8 One might consist of a primo, secondo and digestivo 9 Data base?

10 Quarters that could be worth a lot

11 Brownie mix add-in, often

12 Playoff positions

15 Muckety-muck

18 Fig. on a driver’s license 20 Sleep aid brand

23 Prognosis that a problem has only just begun

24 Sunburnsoothing substance

26 Lead-in to P or C on a PC

30 Peer of Ibsen

31 Where the Ring is destroyed in “The Lord of the Rings”

32 Constant reminders?

33 Recovering orthopedically, maybe

34 Get back together

35 Write à la Thomas Gray or John Donne

36 “Ahhh”

37 Fit to be tried

38 Line at a clothing store 40 Gives birth to, as puppies

42 “___ be nice if …”

43 Toxic protein prepared on “Breaking Bad”

46 El de aquí

48 Run, like a Deere? 49 Homie