6. Fiber plant

10. Memorable periods

14. Notched, as a leaf's edge

15. Carbon compound

16. Woodworker's tool

17. Holiday cheer, part 1

20. Muffle

21. Inane

22. Street strays, e.g.

25. Follow

26. Caroled

30. Akin to 21A

32. Makes a cliche of, say

35. Charms of West Indies witchcraft

41. Holiday cheer, part 2

43. Money-saving offer

44. Slender stogie

45. Smudge

47. Cashless deal

48. Hidden hoard

53. Cultural values

56. Carnegie Hall event

58. Former liberal, perhaps

63. Holiday cheer, part 3

66. Diner sign, e.g.

67. Greek salad topper

68. Tennis star Williams

69. Align, in a way

70. School house?

71. Miro or Klee contemporary

1. Pensioned (abbr.)

2. Pennsylvania port

3. Robin Cook book

4. Not pristine, say

5. Alter, i.e.

6. An LBJ beagle

7. Chemical suffix

8. Belief in a one causal principal

9. Slog

10. Diamond flaw?

11. Indian side dish

12. Savory gelatin

13. Iota

18. Vanna can sell you one

19. Quipster

23. Anagram for a helpful person

24. Nitpicker

26. Permissive, e.g.

27. Maintain

28. Wolfe of whodunits

29. Five-time U.S. Open champ

31. Beethoven's birthplace

33. Application

34. Balkan native

36. It can give you a squeeze

37. New newts

38. Two or three, say

39. Faddish hoop

40. Photo, i.e.

42. Affirmation

46. Athletic award

48. Bouquet

49. Contents of some cartridges

50. Pear variety

51. Bakery treat

52. "Psst!"

54. Self starter?

55. Join the military, e.g.

57. Jazz bit

59. Open court hearing

60. N.Y. or R.I. neighbor

61. Heavy duty?

62. Home, informally

64. Anagram of a British brew

65. Vintner's need