"Lookin' Good"

Across
1. Flamenco music style
6. Ballpark authority
9. Despise
14. Ivan IV and Catherine II, e.g.
15. Sun, to Santiago
16. Only State with just one syllable
17. Muhammad’s God
18. Allergic reaction remedy  ‘___Pen’
19. Ire
20. Safety measure for a tot
23. URL application (Abrv.)
24. Slip up
25. Popular cowboy hat manufacturer
27. Provides commentary on, as in a film
32. McCarthy era anti-comm. agency
33. The loneliest number?
34. Confirmations
36. Place for 6-down, for short
39. It may be opened at a bar (2 words)
41. Greek name meaning ‘well-spoken’
43. Without company
44. Calf-length skirts
46. Popular state sch. in New England
48. Giants’ slugger Mel
49. Attack, like a bear
51. Middle East region including Turkey
53. Top-ranked novel of all time, as deemed by
Random House Publishing
56. Strike
57. Keyboard button above Caps Lock
58. One-time pseudonym of Ben Franklin
64. Express feelings
66. _____ Vegas
67. “One Flew Over the Cuckoo’s Nest” author Ken
68. Possess something once again
69. Off-road rider
70. Number one?
71. Peeved
72. One of 435 in D.C.
73. Test for private school applicants (Abrv.)

Down
1. Wound with a shiv, e.g.
2. Scandinavian capital
3. 19th century French composer Édouard
4. Chalk cleaner
5. Place for butts
6. See 36-across
7. Cleans with water
8. Wields
9. One just shy of going pro
10. Prohibit
11. 2006 Disney hit  “__________ Musical”
12. 12:59, colloquially
13. Raced again
21. German natural scientist Hans
22.  Varsity or J.V. participant (Abrv.)
26. Chinese weight unit
27. M.I.T. Linguist Chomsky
28. Against, briefly
29. Plea from a struggling author
30. Biblical brother of Jacob
31. “Hellboy II” actress Blair
35. Former transliteration of Xi’an, China
37. Repeated answer from the puzzle, like the repeated letter in this puzzle’s theme
38. Alpha follower
40. A preemptive opinion
42. Japanese beer
45. Hang
47. Robbery at gunpoint
50. Dicaprio, to his friends
52. Nicole Kidman 2001 film “The _______”
53. Female reproductive organs
54. Less cool
55. Energy or power starter
59. Unit of measurement
60. Request on an invitation
61. Huge landmass
62. Borrow, like with a movie
63. Colors