1: Medics

5: 'Pipe down!'

10: Hunk of cheese

14: Drive train element

15: Insect stages

16: Musical pitch

17: Adolescent

18: Answer

19: Computer signpost

20: Arrangements, as of opposed mirrors, giving the effect of long vistas

22: 'Roger and Me' setting

23: Place (a bet)

24: Durable fiber

26: Exploited, slangily

30: Doctors

34: Old hand

35: Jalopy

38: Stand for a portrait

41: San Diego tourist magnet

42: Dry white Italian wine

43: Wind gauge

46: Stitch up

47: Polymer products

48: Numbs

51: Put a counter to zero

54: Chart shape

55: The rite place?

58: Used a thermostat, say

63: Hearts or diamonds

64: Like the ZIP code system

65: Prix ___

66: Curly-leafed cabbage

67: Teen faves

68: Barely manages, with 'out'

69: Litigates

70: By no means long-winded

71: Part of a violin

1: Prom escort

2: Whom the yoke's on?

3: Pitch indicator

4: Not thinking well

5: Painter's device

6: Colored

7: Word before crust or hand

8: Dance with a dip?

9: Attention getter

10: Kind of heel

11: Places

12: In the near future

13: Crooked

21: Guiding principle

22: Computer data

25: ___ de mer (seasickness)

26: Hunter's weapon

27: Construction site hoist

28: Romantic bouquet

29: Stupefy

31: Remove graphite or graffiti

32: Baltimore player

33: Shoots out

36: Little one

37: Hammered obliquely

39: Dubai and Abu Dhabi

40: Company dodger

44: Mag. submissions

45: Drive away

49: Feel unwell

50: Overwhelm with sound

52: Destroy by degrees

53: Opera hero, usually

55: Responds correctly on 'Jeopardy!'

56: Oahu bash

57: Scrabble letter

59: Women, to a buckaroo

60: Young'un

61: Firm head

62: Kind of calendar

64: This gets popped when it pops up