1. Words before 'old chap'
2. Wizard
3. With 18-Across, phrase of resignation
4. What a phoenix rises from, with 'the'
5. Weeding tool
6. Washington/Montana separator
7. Was heartsick
8. VW or BMW
9. Type of black tea
10. Toyota Prius, e.g
11. Totally uncool
12. Tool for climbing the Alps
13. Tom who wrote 'The Electric Kool-Aid Acid Test'
14. Tobacco holder
15. The sixth letter of 'garbage,' but not the first
16. The 'F' of T/F
17. Thanksgiving dessert
18. Squeal in pain
19. Somewhat tardy
20. Some E.R. cases
21. Smooth-talking
22. Send over the moon
23. See 17-Across
24. Second-longest river in Iberia
25. Scare off
26. Santa ___ racetrack
27. Room with a tub, informally
28. Regarding this matter
29. Qualifying match, informally
30. Punch bowl dipper
31. Practices boxing
32. Post-blizzard vehicle
33. Phrase of resignation
34. Phrase of resignation
35. Phrase of resignation
36. Phrase of resignation
37. Paperless party summons
38. Only U.N. member whose name comes alphabetically between P and R
39. Offshoot of punk
40. Nurtured
41. Minuscule, informally
42. Maguire who played Spider-Man
43. Literal phrase of resignation
44. Lightens, as one's load
45. Land divided by the 38th parallel
46. It's not the truth
47. Hides in the forest?
48. Have down ___ science
49. Haunted house inhabitants
50. Go in circles
51. Go hungry
52. Gait between a walk and a canter
53. Frolicking mammals
54. Former celebrity
55. Former attorney general Janet
56. Flightless South American bird
57. Envious critic, in modern lingo
58. Early afternoon hour
59. Early 2000s White House inits
60. Developmental rink org
61. Constantly worry
62. Comedy routine
63. Collectible art print, in brief
64. CBS logo
65. Cardio workout regimen
66. Brand at the Daytona 500
67. Big name in Chicago politics
68. Beautiful water hue
69. Attacked on all sides
70. Adjoining hotel accommodations
71. Achieved results
72. 'What's the big ___?'
73. 'Well, lah-di-___!'
74. 'Sure thing'
75. 'Still ...'
76. 'Bravo!'