1. Tuber to be thankful for
4. Grassland of S. Africa
8. __ of life
13. "What a pity"
15. Mine, to Miss Piggy
16. Sullen greeting
17. Continuation of Daisy Chain
20. 4 o'clock treat, maybe
21. "__ It Romantic?"
22. Observe furtively
23. Sunday and Friday people
26. Clodhopper size?
27. Continuation of Daisy Chain
35. Zip
36. 50's/60's actress Martha
37. Spine-chilling
38. Boris Godunov
40. Groupies do it
43. Gazpacho, e.g.
44. Empire destroyed in 1521
46. Lunes y Martes
48. Am/fm network
49. Continuation of Daisy Chain
53. Field's Oscar role
54. No longer 12
55. "__ never too late..."
58. Stopping places
60. Very, on scores
64. Continuation of Daisy Chain
68. Blow up
69. Kvetch
70. Gang's neighborhood
71. "Reserved Powers" Amendment
72. Points of decline
73. Scott's Rob

1. Jabbers
2. Sir Guinness
3. Prestigious Clinic
4. Vintner's necessity
5. Flightless feathered friend
6. Anderson of "WKPR"
7. Internal-combustion engine
8. Sleep
9. Mummy King
10. Vestry garments
11. Bed down
12. Sexy, SNL style
14. Get rid of, as split hairs
18. Below, poetically
19. Draft classification
24. Fires, with off
25. Do it in your own juice
27. Use a church key
28. Dough that's flipped in the air
29. Gray
30. Home of El Grecos and Goyas
31. "Swamp Thing" director Craven
32. Suit pressers
33. Sean's costar in "Marnie"
34. February shape
39. Zebra on the field
41. Boston Massacre, e.g.
42. Man or self follower
45. Ally of Sparta against Athens
47. Way to cook vegetables
50. Half of an atlas name
51. Full DNA sequence
52. Opposite of finish
55. "Oh, sure!"
56. Pericles' princedom
57. Give a wide berth to
59. Persnickety one
61. Embitter
62. American or Asian lead-in
63. Comme ci, comme ça
65. Relevant
66. Hunter of "Battle Cry"
67. Aliens agcy.