1. Magma
5. Anagram of "Space"
10. Invited
14. Nile bird
15. Santa's helpers
16. Largest continent
17. Restriction
19. Russian emperor
20. Old World vine
21. Meanders
22. Scoundrels
23. Producing a strong effect
25. Notions
27. In song, the loneliest number
28. Utilized to often
31. Wrinkled fruit
34. Spawn
35. Frozen
36. Telephoned
37. Kingdom
38. Ancient Peruvian
39. Autonomic nervous system
40. A wheeled platform
41. Nosed (out)
42. Unrefined metals
44. To and ___
45. A long-legged S. American bird
46. Adulteress
50. Scatter
52. Pandemonium
54. Nigerian tribesman
55. Website addresses
56. Dealer in books
58. Weight loss plan
59. A small island
60. Flower holder
61. Fizzy drink
62. Little
63. Frosts
2. Not below
3. A type of plastic
4. Donkey
5. Calm
6. A loud resonant noise
7. Keen
8. In a thoughtful manner
9. Eastern Standard Time
10. French for "Boat"
11. Evaluating
12. Found on rotary phones
13. Hearing organs
22. Group of cattle
24. Not short
26. Consider
28. Not written exams
29. Behold, in old Rome
30. Twosome
31. Baby buggy
32. Hindu princess
33. Disentangled
34. Combative
37. Wander
38. False god
41. Jagged
43. Excrements
44. Frigid
46. Captured
47. Light purple
48. Overweight
49. Stomata
50. Lather
51. Threesome
53. Puncture
56. Smidgen
57. 56 in Roman numerals