1. Tomb
6. Deep cut
10. Rapscallions
14. Ascended
15. Savvy about
16. Groan
17. Requested
18. Burden
19. Cogitate
20. Without hope
22. Initial wager
23. Adult female
24. Aquatic mammal
25. Hawkeye State
29. The combining power of atoms
31. Spruce up
33. Pull back
37. A Eurasian annual herb
38. Primarily
39. Empower
41. An accuser
42. Opportunities
44. Adriatic resort
45. Locale
48. Street urchin
50. By mouth
51. Indecisive
56. Magma
57. Hats
58. Indian antelope
59. French for "State"
60. Not odd
61. Make improvements
62. Only
63. Expunge
64. Affirmatives
2. Ascend
3. Poses a question
4. Vice President
5. Provide with a permanent fund
6. American clarinetist
7. Toughen
8. A very attractive woman
9. Party thrower
10. Extraneous
11. Increase
12. Adhesive
21. A short novel
24. In base 8
25. Small island
26. Portent
27. Desire
28. Eloquent
30. Goddess of divine retribution
32. Church offering
34. Against
35. Lummox
40. Etch
41. Estate
43. Anagram of "Parcel"
45. Field mice
46. Muse of love poetry
47. Pertaining to the oceans
49. Offensively curious
51. Anagram of "Dice"
52. Disabled
53. Applications
54. Prong
55. Terminates