1. Batty
2. Skye or Capri
3. Take note of, e.g.
4. Related to 21A, 46A, 3D & 29D
5. Chemical warfare gas
6. Pale purple shade
7. "Green Gables" girl
8. New Mexico Indian
9. Words set in stone?
10. Geographical depression
11. Nabisco favorite
12. Big name in small construction?
13. To do item
21. Energetic, say
22. Niche in a church
24. Nerve network
26. Closely related to 6D, e.g.
27. Disabled, in a way
28. Legend, so to speak
29. Take note of, e.g.
30. Gall
31. Emcee
32. Computer info
33. Salad veggie
36. Easily filled
37. Mimic
39. Come clean?
40. Advocate
42. Productive period
43. Aplenty
45. Encouraged, with "on"
46. Dam
47. "Beetle Bailey" dog
48. Regrets
49. Black, as la nuit
50. In the know, so to speak
52. Kind of cracker
53. Equal
56. H.S. exam