1: Ossuary

4: Joke object

8: Blob of used gum

11: Ground corn

13: Commit a coup d'état

15: Pump part

16: Lay macadam

17: Exclude

18: Dark greenish blue

19: Loses weight (with 'down')

21: After-dinner drink

23: Gunk

25: 'Flee, feline!'

26: Strands

30: Doesn't contain one's anger

34: Auction offering

35: Mock-portraying

37: Danger

38: Parcel of land

40: Many a 'Mad' article

42: Body of an organism

43: Small game with big ears

45: Turf

47: Marsh

48: Go at

50: Most pricey

52: Pencil remnant

54: Golf ball pegs

55: Their job is taxing

60: Flat-topped hills

63: Sound from a fan

64: Three-note chord

66: Limb's partner

67: Goes bad

68: Dividing membranes

69: Ruing the run, perhaps

70: Not the other guy

71: Watermelon beginning

72: Dauphin's denial

1: Baseball VIPs

2: Down-to-earth

3: Cockpit workers

4: Begin blooming

5: Secondhand

6: Toilet roll holder

7: Coal haulers

8: Trials and tribulations

9: Word of woe

10: Proofreader's mark

12: Bar wedge

14: Number on a tag

15: War memorials, e.g.

20: Soft drink

22: Waterproof cover

24: Orchestra that plays light classical music

26: Series beginning

27: Ropes with weights attached

28: Pup's bites

29: 'The ___ of Kilimanjaro'

31: Line definition

32: X, mathwise

33: Bias, in reporting

36: Bearded mammal

39: Film snippets

41: Neck line?

44: Gains a lap

46: Judge

49: Craves

51: Strips

53: Goes on and on and on...

55: Off course

56: 'Flee, fly!'

57: In ___ (unmoved)

58: No longer green

59: Stuff to the gills

61: Curly coif

62: Observed

65: Family man