1. Type of viper
6. Awful
10. Detective's assignment
14. Antlered animal
15. Notion
16. Cobras
17. Shad
18. Adjusts
19. Therefore
20. Genetic
22. Wife of Zeus
23. Strike
24. One cent coin
25. Millisecond
29. Begged
31. Come apart
33. Lay of the land
37. Earned
38. Complete disaster
39. Biological group
41. One thousand thousand
42. Confined to certain regions
44. Rational
45. Room dividers?
48. Relating to audible sound
50. Environs
51. Perspicacity
56. Seize suddenly
57. Baseball glove
58. Eagle's home
59. Noble
60. Blemish
61. Fixed gaze
62. Physics unit
63. Anagram of
64. S S S
2. Handout
3. A swinging barrier
4. Anagram of "Sees"
5. Absorbs written material
6. Purify
7. Envisage
8. Withdrawal
9. Not difficult
10. Churches
11. Pale
12. Reject
21. Got in the way of
24. Danger
25. Coffee cups
26. Break in two
27. A Great Lake
28. Eligible for annulment
30. Shortfall
32. Blood vessels
34. Largest continent
35. Computer symbol
36. Zero
41. 60 in an hour
43. Spot
45. Engaged
46. Impressive display
47. Gain knowledge
49. Stop
51. Ammunition
52. Trawling equipment
53. Ages
54. Your majesty
55. Observes