1. Homonym for a baker's product
2. Pull a 59A, say
3. Out of the way
4. Anagram for a British brew
5. Modernizes a factory
6. Fiesta fare
7. Biology lab supply
8. Wire measures
9. Not up to par
10. It's the law in Peru
11. Slipshod, e.g.
12. Fortify again
13. British diarist Samuel
18. Doing nothing
21. "I see!"
22. Heroic tales
23. Solve, so to speak
24. Randomly, e.g.
25. Comply with
26. Amorphous mass
27. Engine speed, for short
29. Lift a lawyer's license
30. Carbon compound
32. Arrangement holder
34. Gangster's gun, slangily
35. Like wealthy landowners
37. Laotian cash
38. "Unforgettable" singer
40. Pampering spot
41. Shape
43. Aloof
44. Essence
45. Loses luster
46. Celebrate
47. Native New Zealander
49. Tight spot
50. Perpetually
52. G-man's org.
53. Former White House nickname
54. Polynesian strings
55. Ed.'s request, perhaps
56. Trip starter, initially
57. "Indeed!"