1: Storm particles

5: Bloke

9: Former Iranian ruler

13: Sole projection

15: Like some excuses

16: Pooch in 'The Wizard of Oz'

17: Ease off

18: Segments of history

19: Regretted

20: Change

23: Chart shape

24: The limit, for some

25: That's what happens

28: Anglers' locales

31: One over the limit

33: Time-wasting bother

34: Winner at Caesar's palace?

35: 'Shogun' sash

36: Example of polluted politics

40: Seek favor with

42: Cyclotron bit

43: Long time

44: Least malleable

47: Rock climber's need

51: Frequently

52: George W. Bush, to George H.W. Bush

53: Block passage through

54: Input for a recorder

59: 'The Sabbath' painter Chagall

61: Word of woe

62: Shivering fits

63: Type of arch

64: Cheesy sandwich

65: Argon and krypton, for two

66: Ties the knot

67: Lads

68: Refute

1: Scoundrels

2: Even though

3: Less messy

4: Statistics

5: Store salespeople

6: Creature that's part woman and part bird

7: Indian housemaid

8: Colombian coin

9: Make a valiant effort

10: Pekingese or Yorkshire terrier, usually

11: Had a bite

12: Bricklayer's item

14: President pro ___

21: One way to learn by

22: Attend

26: Lincoln loc.

27: Cycle starter

29: Vichy water

30: Include

31: Confession topic

32: Urban birds

34: French wine

36: Plastered walls, in a way

37: Auction offering

38: Wrath

39: 'Uh uh'

40: 'Quadrophenia' band, with 'The'

41: Loutish fellow

45: Twos in a deck

46: Wrap up

47: Salutes an honoree

48: More than 90°, or less than tactful

49: Type of sail

50: Like formal attire

52: Like snakeskin

55: Metric foot

56: Table spread

57: Droop

58: Quaint oath

59: Trim the turf

60: Historical period