1. Single-celled organisms
7. Return from the cave?
11. Canine exercising canines
16. Desdemona's lady-in-waiting
17. Bat the breeze
18. Bolt together?
19. "Ed Wood" Oscar winner Martin (6)
20. Little litter critter
21. Away (3,2)
22. Song popularized during Billy Sunday's evangelical campaigns (13)
25. -speak (-3)
26. Singing the blues
27. Slick stuff
28. 3-D picture
29. Medieval weapon (4)
30. IV-covered area (3)
32. Bubbly buy
35. Tijuana tavern (6)
37. Counterpunch (6)
40. ___ colada
42. German metaphysicist
43. Minor place?
44. Red markers? (4)
46. Swamp thing
48. They have higher highs and higher lows
50. Went to the mat
54. He spoke to Othello of "the green-eyed monster" (4)
55. Locked horns
56. "The Music Man" setting
57. Paints a word picture
60. Water falls
62. Pair of Jolly Rogers (6)
64. It's far out
66. Lothario
68. Emma's "Sense and Sensibility" director
69. Christian symbol associated with Saint Anthony (3,1)
70. Bout shortener, for short (3)
72. White House monogram
74. It could cause you to trip
77. Fangorn Forest creature (3)
78. Winter Olympian (13)
82. Dry out, so to speak
84. Making waves, perhaps
85. Whatsis
86. Classical finale
87. Merry adventure
88. Moon of Saturn named for an Amazon killed by Achilles
89. "Raiders" activist Ralph
90. It can be a face-saver
91. It may respond to pressure