1. Ultimatum ender
5. Append
8. A chess piece
12. Not warm
13. Palm cockatoo
15. Reflected sound
16. Travelled on a horse
17. Critical
18. Corrosive
19. Inescapable
22. French for "Summer"
23. Est. time of arrival
24. Verbal
26. Set ablaze
29. Makes amends
31. Summer refresher
32. Cyphers
34. Glacial ice formation
36. Greek sandwich
38. Stiff
40. Farewell gesture
41. Assumed name
43. Encrypted
45. Golf ball support
46. Most recent
48. Jubilant
50. Not this
51. Actress Lupino
52. Fold, spindle or mutilate
54. Illegitimate
61. Colored part of an eye
63. Skirmish
64. Tropical root
65. Between the head and shoulders
66. Measure of gold
67. Not the entrance
68. Gentle
69. African antelope
70. Ascend
2. Diving bird
3. Fizzy drink
4. Just short of a dozen
5. Dry
6. Information
7. Lackluster
8. ___ green
9. Increase speed
10. Iota
11. Connecting point
13. Pilot
14. Apportion
20. Auditory
21. God of love
26. Bucolic
27. Medical science for seniors
28. Decree
29. Comment to the audience
30. Rescued
31. Ottoman officer
33. Bigheadedness
35. C
37. Pledge
39. Pleasure
42. A-line line
44. Woodworking groove
49. A small piece of cloth or paper
52. Not yours
53. Territory
55. Dross
56. Farm building
57. Jacob's brother
58. Cab
59. Goddess of discord (Greek mythology)
60. Memo
62. When it's clear, it's blue