1. An ancient board game
6. Snip
10. A D-Day beach
14. Abatement
15. Graphic symbol
16. Zero
17. A kind of macaw
18. Pot
19. Shade trees
20. Obstinate
22. Resign
23. Consumer of food
24. Old-fashioned
25. Curdled soybean milk
29. Big ape
31. Retaliator
33. Mail pouch
37. Heavy
38. Small northern whale
39. Accord
41. To foreshadow
42. Atomic pile
44. Remnant
45. Believe in
48. Rowed
50. Stalk
51. Revision
56. Ancient Peruvian
57. Infants
58. Audio communications
59. Annoying insect
60. Curved molding
61. Inclination
62. Hoopla
63. Combustible pile
64. Drenches
2. Not there
3. French for "State"
4. Certain
5. Surplus
6. Betrayer
7. Jogger
8. Temporary
9. A fitting reward (archaic)
10. Unique (British spelling)
11. Anklebone
12. Concede
21. Deep purplish red
24. Aviator
25. Story
26. Baking appliance
27. Accomplishment
28. Downplay
30. Worker
32. Agile Old World viverrine
34. Prickle
35. Chills and fever
36. Mob
41. Anticipate
43. Shred
45. Part of a leg
46. Fluid
47. Open, as a bottle
49. Pub game
51. At the peak of
52. Tropical tuber
53. Bright thought
54. Pig sound
55. Gestures of assent