1: Hit bottom

5: Setting for Frankie and Annette

10: Tired adages

14: Whom the yoke's on?

15: Series beginning

16: Ball of yarn

17: Slippery sheet

18: Sealed a package

19: Logical flaw

20: Run-down digs

22: Haut ___ (high society)

23: Include

24: Least fresh

26: Let on

30: City on the Volga

32: Hags

34: Hardly hard-nosed

35: Splashed through the pool

39: Underworld lingo

40: Threefold

42: Tropical root

43: Youngster

44: Ocean bird

45: Chip off the old block?

47: Like a heroic couplet

50: Dolphins' home

51: Cutting commentary

54: Fall off, as the tide

56: Curved moldings

57: Attacker

63: Encircle

64: Greek gathering spot

65: Prospector's bonanza

66: Sandpaper component

67: They're passed on from father to son

68: Last word in prayer

69: Deep desires

70: Outer limits

71: ___ fiber (flax, hemp, ramie, or jute)

1: Warm and cuddly

2: Drive train element

3: Lighted sign contents

4: Joint with a cap

5: With ___ breath (anxiously)

6: African antelopes

7: PDA entry

8: Pawn or bishop

9: 'I've ___ it up to here!'

10: Bookworm

11: Flying solo

12: Some construction junctions

13: Short partner?

21: Perth pal

22: Spoil

25: IRS concerns

26: Dept. store shopper's privilege

27: Low cart

28: Cistercian, e.g.

29: Mediates

31: Much the same

33: Collar inserts

36: Silent greeting

37: Ammonia compound

38: Dawn and on

41: Searched (through)

46: Earring spot

48: Suffers from

49: Extent

51: Damp and heavy

52: Quick-thinking

53: Later showing

55: Heavy metal

58: Cymbal relative

59: Hunk of cheese

60: Body of an organism

61: Tributes in verse

62: Monthly payment, for many

64: Historical period