1. Oxygen and helium, for example
6. Sleeveless garment
10. Hairdo
14. Extreme
15. Reflected sound
16. Banner
17. Dens
18. Close
19. A dog wags one
20. Stubbornly unyielding
22. Sea eagle
23. Found on a finger
24. Exit
26. Exuviate
30. Nigerian tribesman
31. Decay
32. Smell
33. Weapons
35. Twangy, as a voice
39. Progressive
41. Grapple
43. Colonic
44. Type of sword
46. Labels
47. French for "Summer"
49. Ump
50. Historical periods
51. The first event in a series
54. Ear-related
56. Street
57. Starters
63. Countertenor
64. Any day now
65. Storehouse
66. Place
67. If not
68. Genus of heath
69. Male offspring
70. Marsh plant
71. Full of hardship or trials
2. Wings
3. Blend
4. Makes a mistake
5. Indian antelope
6. Foyer
7. Troop formation
8. Cold-shoulder
9. Move unsteadily
10. A delayed flavor sensation
11. Emergency signal
12. Showers
21. Type of antelope
25. Departed
26. Infiltrator
27. Norse god
28. Part of the outer ear
29. Wonderful
34. Sugared
36. Sun
37. Aquatic plant
38. Not more
40. Be worthy of
45. Ask someone to marry you
48. Found at the end of a pencil
51. Not written exams
52. Infantile paralysis
53. Consumed
55. Made from apple juice
58. Barbershop emblem
59. Nil
60. Sweeping story
61. Stone
62. Remain