1. Stair
5. First World War plane
9. Showers
14. An ancient Toltec city in central Mexico
15. Asphalt
16. Endow
17. Nile bird
18. A Central American sloth
19. Robbed
20. Unenergetic
22. Blabs
23. Step
24. Tart citrus fruit
26. ___ then zag
29. Soothsayer
33. Made unhappy
38. Take into confinement
39. Entreaty
40. Incline
42. Matured
43. Order of business
45. Indefatigable
47. Cause to go crazy
48. Terminate
49. Alter
52. Delete
57. Inscribed pillar
60. Systemizer
63. City in France
64. Be in an agitated emotional state
65. Former vice-president Al
66. A colorless and odorless inert gas
67. Passion
68. Auditory
69. Rock
70. Sword
71. Apartment payment
2. A fleshy underground root
3. Best of the best
4. Ottoman title
5. Egg on
6. Twinge
7. Use to one's advantage
8. Two
9. Fix up
10. Existing before birth
11. Graven image
12. Void
13. Views
25. Contemporary
27. Irrational
28. Colloid
30. For a bird or a hamster
31. Untruths
32. Concludes
33. Unwanted email
34. Seaweed
35. Act
36. A common weed
37. A very small circular shape
41. Apple or rhubarb
46. Biblical garden
50. Majestic
51. Sag
53. Difficulty
54. An obsolete name for nitrogen
55. Small finch
56. Construct
57. Resorts
58. Wench
59. Therefore
61. Donate
62. Away from the wind