1. Defensive nuclear weapon
4. "Bon ___" = a witty remark
7. A woman of refinement
12. Actress ___ Farrow
13. Turns into noun
14. Lake in NW Russia
15. In a way, renounces
17. Nobel Prize (1933) physicist Paul _____
18. South American wood sorrel
19. Scottish for "To"
21. Madame (abbrev.)
22. Liquid body substances
24. Russian space station
25. Picasso's mistress
26. Brew
27. Live in
29. Some point in the air
31. Irony
35. A bend
37. A waterproof raincoat made of rubberized fabric
38. The Chadic language Matakam
41. The winged goddess of the dawn in ancient mythology
42. Free from gloss
43. A fabric woven from goat and camel hair
44. No seats available
45. Journal or periodical
46. Oil company
48. Endurance
52. Any of several tall tropical palms native to SE Asia
53. Take in solid food
54. Just made or created
55. Spherical gram-positive bacteria occurring in pairs or chains
56. Doctor of Dental Science
57. The compass point that is one point north of due east
2. Apron
3. Declared academic specialty
4. Harelike rodent of the pampas of Argentina
5. A lyric poem with complex stanza forms
6. Endocrine gland
7. The most frequent value of a random variable
8. Black tropical American cuckoo
9. The deep vascular inner layer of the skin
10. Small terrestrial lizard
11. An official who carries a mace of office
20. Gets up
22. ABC journalist ___ Donaldson
23. ___ Lilly, drug company
24. The combination of two or more companies
25. Got together
27. ___ de Janeiro, Brazil
28. Former UN Secretary General ___ Hammarskjold
30. Government computer language
32. Visualize
33. Rodent
36. Released
38. Female parents
39. End prematurely
40. Latin for "Skilled"
42. Mayan people of SW Guatemala
44. Hit with the open hand
45. Pads
47. Water in the solid state
49. Small amount
50. Horny projecting jaws of a bird
51. Beard of grain