1. Area of South Africa
6. Conspiracy
10. Being
14. Poplar tree
15. Anger
16. Anagram of "Meat"
17. Greek letter
18. Portent
19. Buttocks
20. Portion
22. Olympic sled
23. Offended
24. Chemical cousin
26. A ball of yarn
30. Regret
31. Timid
32. Cartoon bear
33. Contributes
35. Refereed
39. Rotating shaft
41. Kneecap
43. Cantankerous
44. Sediment
46. Close
47. Snake-like fish
49. Louse-to-be
50. Armored vehicle
51. Scant
54. Immediately
56. Defrost
57. Make ineffective
63. Against
64. Storm
65. Cyphers
66. Fraud
67. Russian emperor
68. Sea
69. Not there
70. Not his
71. Sedimentary rock
2. Cain's brother
3. Express in words
4. Countertenor
5. Filter
6. Sticks out
7. Not excessive
8. Margarine
9. Wimbledon sport
10. Having a job
11. Truth ___
12. Platform
21. Hearing-related
25. Close
26. Vesicle
27. Easy gait
28. Auspices
29. The coldest season of the year
34. Dividers
36. Urgent request
37. Distinctive flair
38. Not light
40. Colors
45. Private
48. Distance
51. Demolish
52. British penny
53. Communion table
55. Anagram of "Coast"
58. Lack of difficulty
59. Lake (Scottish)
60. Notion
61. Ardor
62. Feudal worker