1: Sonic unit

5: Drying-out place, familiarly

10: Good, ironically, in slang

13: Throbbing

14: Appetite stimulant

15: Cooked sufficiently

16: Blender button

17: Plotters, possibly

18: Greek letter

19: Breaks away

21: Rather and Brokaw, e.g.

23: Abacus part

24: 'The Sound of ___'

25: Prevent, with 'off'

28: Garbage bag closer

29: Whistle stops

33: Weight allowance

34: Pound part

36: Cat call

37: Last word in prayer

38: Paycheck booster

39: Word before blocker or testing

40: Monthly payment, for many

41: Make a circle around

42: Sesame starter?

43: It could be dominant

45: French dip dip

46: Immeasurable depth

47: Lucky strikes

49: Winter ailment

50: Pitcher's cuff

53: Mainstays

57: Share a border with

58: Bagpipe sound

60: Indian housemaid

61: 'Don't stop'

62: Spine-tingling

63: Tip for a casino dealer

64: Cygnet's mother

65: Bottom-of-the-barrel stuff

66: Scratched (out)

1: Large mouths

2: Feel compassion

3: Stylish

4: Experience a lack of oxygen, perhaps

5: Fought the clock

6: Segments of history

7: Quoits target

8: Literary assistant

9: Bundles of hay

10: Good economic news

11: Players may up it

12: University bigwig

15: Befuddle

20: She's a deer

22: It may be dry

24: Airport shuttle, usually

25: Get going

26: Circus employee

27: Combat site

28: Movie with a very sad ending

30: Tearful

31: They may be passed in school

32: Large waterfowl

34: Old hand

35: In the time left

44: Little one

46: For ___ the marbles

48: Supplied medicine to

49: Computer data

50: Stadium passage

51: Chamber music instrument

52: Chance to play

53: Fuddy-duddy

54: All over the place

55: Autumn tool

56: Let fall

59: Wrath