OBSERVER CROSSWORD PUZZLER

ACROSS 1. Volcanic rock 5. Crazy talker 11. Bedim 16. Kaput 17. Chemical solution 18. Kind of ticket 19. Kosher ___ 20. Zany 21. Decrease 22. Old 24. Nada 25. Inedible orange 26. Birdbrain 29. Chief 31. Anteater 34. Hyperbolic function 35. Engine speed, for short 36. Genetic stuff 37. Barley brew 38. Primitive marine organisms 40. Food for sea urchins 42. Diamond measure 44. Australian runner 45. Exertion 47. Skewered entrée 49. Come after 53. “Amen!” 55. Stash away 57. Large cymbal 58. Doubtful 62. Conk out 64. Big deal 65. Note before Lah 66. Brass component 67. WWII Secret police 69. Inflexible 71. Capers 72. Eyeball benders 73. Quiche, e.g. 74. Howler 78. Rwandan people 79. Chemical warfare gas 82. Pinocchio, at times 83. Construction girder 84. Beach Boy Brian 85. Desire 86. Record groove, e.g. 87. Gets rid of 88. ___ Boogie DOWN 1. Rock’s Rundgren 2. Eye part 3. Experienced 4. Damon, to Pythias 5. “Losing My Religion” rock group 6. Carte lead-in 7. Bore or pest 8. Implied 9. And others, for short 10. Gym unit 11. Desecrate 12. Type of pneumonia 13. Display unit 14. Tackle 15. Future fish 23. Prima donna 25. Prevention measure? 27. After-bath powder 28. Cause havoc 29. Anger, e.g. 30. Type widths 31. Clumsy boats 32. Again 33. Bronchial rattle 34. Thai food 38. Leah’s father 39. Air bag? 41. Pay as you earn 43. Archaeological find 46. Verse form 48. Bathroom cleaner? 50. Ivory, e.g. 51. Annul 52. Freudian topics 54. Restrict 56. Not yet final, at law 58. Mex. neighbor 59. “Don’t Speak” group 60. Writer’s block? 61. Aardvark’s morsel 63. Carve in stone 67. Banded metamorphic rock 68. Place of refuge 70. Kenyan tribesman 71. Bridal path 73. Victorian 75. Cork’s place 76. Badgers 77. Atlas stat 78. “___ the season …” 79. Cow, maybe 80. “___ a chance” 81. Dash widths