1: 'Terrible' phase

5: Tannic and boric

10: Tiff

14: Laura, to George W.

15: Fauna's partner

16: Puzzle piece

17: Type of flu

19: Acorn droppers

20: They honk and hiss

21: Fivesome on a five

22: Corrode

23: Lake-bottom navigation impediments

25: Brings to a halt

27: PGA driver

29: Warble

32: Favorable factor

35: Greek consonant

39: Constricting snake

40: Feel unwell

41: Eellike fish

42: Flight from justice

43: Moisten

44: Foster child, maybe

45: Cons' confines

46: Peevish states

48: Lunar effect

50: Pasty masonry cement

54: Acquire by fraud

57: British baby buggy

59: Shiite leader

61: More duplicitous

63: Ceremonial practice

64: Lively Italian folk dance

66: Responsibility

67: Greek gathering spot

68: Lean

69: CEO, CFO, etc.

70: In a regal manner

71: Back talk

1: Branchlet

2: Soave and Cabernet, e.g.

3: Frequently

4: Vacillates

5: Sternward

6: Curtail

7: Type of bond or order

8: Wrap around

9: Dance with a dip?

10: Point maker

11: Not out of the question

12: Black-and-white divers

13: SAT part

18: Utah's state flower

24: From the nearest star

26: Hang around

28: Like a dungeon

30: Deal with a shylock

31: Hightails it

32: Feline feet

33: Property encumbrance

34: Peremptory demand

36: Speed meas.

37: Spoiled child

38: Casual fabric

41: Write-off

45: Beanbag contents

47: Least wild

49: 'Bunnies' under the bed

51: Influential person

52: Grown grub

53: Chocolate substitute

55: Eyelashes

56: Squeals, so to speak

57: Big senior year event

58: Frodo's burden

60: Crumbly clay mixture

62: Snitches

65: Vote to kill