1. Slight advantage
2. Zhivago's love
3. Came to rest
4. Clear
5. Ti
6. Approves
7. Peddle
8. Nimbus
9. What certain DeLoreans do at 88 miles per hour
10. Doctors' org.
11. Bygone airline, as most knew it
12. Vice president before Gerald
16. Brother of Abel
21. "Go, team!"
22. Hoover, informally
26. Disney goldfish
27. Nutritional supplement retailer
28. Long, long time (Var.)
29. Prefix meaning "one-billionth"
30. Kentucky race
31. Blunders
34. Tennis units
36. First James Bond movie
37. Arouse
39. "___ Like It Hot"
40. Without stop
41. "Spartacus" or "Apocalypse Now", e.g.
42. Was inactive
47. Reagan defense progr.
49. Big mouth
50. Charged particle at the heart of an atom
51. White bean
52. Old Spanish coins
53. Religion of Mecca
54. Like some renewable energy
57. Like some piano keys
58. Poi root
59. Pink
60. Thousandths of an inch
61. Opening in a one-armed bandit
63. Lucy of "Charlie's Angels," 2000