1. Alliance
5. Prickly shrub
10. All excited
14. Change
15. At full speed
16. Acute
17. Auspices
18. Witty put-downs
19. Elliptical
20. "Go on!"
23. Antiquity, in antiquity
24. Costa del ___
25. Accused's need
27. Nonclerical
30. Banned apple spray
33. Flying high
36. Rubber compound
38. Grassy plain
39. Cowboy boot attachment
40. Global finance org.
42. "Don't go!"
43. Ornamental loop
45. Menu phrase
48. Climbs
50. Insect stage
51. Appetite, say
52. Crows' homes
54. Pose a poser?
56. Swindled
58. "Go on!"
64. They often clash
66. Addams family butler
67. Chipper
68. Commuter line
69. Dior creation
70. Fertilizer compound
71. Affectedly creative
72. Mirthful states
73. Picks up a pickup, maybe