1: Plotters, possibly

6: Wise guy?

10: Neck line?

14: Rust, tarnish, or laughing gas

15: Responsibility

16: Dirty look

17: Crystal-lined rock

18: Subordinate staffer

19: Shrek, e.g.

20: Absentminded type

23: 'What have we here?'

26: Get going

27: Approached

28: Ballpark figures

30: Sketch again

33: Unproductive

34: Obsolete VCRs

36: Like LXVI

38: Subdued

42: Olympic weapons

43: Outermost community

46: Josh

49: Birthplace of the Apostle Paul

52: Hit the horn

53: Hams it up

55: Quill tip

57: Stitch up

58: One who knows the score

62: Treat a pledge poorly

63: Thus

64: Cut off

68: Some intestinal divisions

69: Body's companion

70: Despoil

71: Days gone by

72: Stepped on it

73: Sturdy hand shovel

1: Minor player, so to speak

2: Fireman's tool

3: Life story, for short

4: Sums up

5: Bloodsucker

6: Small, pointed beard

7: Single thing

8: Obnoxious

9: Online identity

10: Fauna's partner

11: Take into account

12: Twice as spooky

13: Chic

21: Tune

22: '___ the Ides of March'

23: Eyeball

24: Tint

25: Not fooled by

29: Conserve

31: Refuse

32: Use the oars

35: Octet minus one

37: Barber's call

39: Tax twice

40: A pop

41: Abbott and Costello and Burns and Allen

44: 'Sweet Pea' singer Tommy

45: Incidentally, in Netspeak

46: Send again

47: African antelope

48: Drinks like a fish

50: Still on the shelf

51: Pose for a pic

54: Pick up the check

56: Outshines

59: Cut short

60: Fluish feeling

61: Sow's opposite

65: Routing term

66: Wrap up

67: Map abbr.