Going Underground by Fred Piscop

Across 1. Low voice 5. Hit a high 9. Morley of "60 Minutes" 14. Minstrel's instrument 15. Wheel holder 16. Give the slip to 17. Petri dish gel 18. Pro __ (proportionately) 19. Popeye creator __ Segar 20. Comstock Lode figure 23. Z, to a Brit 24. Fax precursor 25. Words on an expiration notice 27. Bacon unit 31. Mingo player on "Daniel Boone" 34. MDs' org. 37. Old, but new again 39. Discontinued iPod model 40. MTA driver 44. Jessica of "Dark Angel" 45. Mr. __ (Tati role) 46. FDR successor 47. Reese in Cooperstown 50. Units of force 52. Bosox rivals 54. Martini & __ vermouth 58. Dept. head 60. Ed Norton, notably 64. Garlicky sauce 66. Geometry calculation 67. Go out together 68. Pioneer's path 69. Subcompact 70. "Tell it like __!" 71. Discombobulate 72. Do a KP chore 73. Fender ding Down 1. Use TNT 2. Hanna-Barbera's __ Doggie 3. Play for time 4. Waits on 5. Henry VIII's sixth wife, Catherine __ 6. Proctored event

7. Height: Prefix 8. Reeves of "The Matrix" 9. Be furious 10. The whole shebang 11. Bush accused Gore of using this 12. Falco of "The Sopranos" 13. Sax player's buy 21. Newsboy's shout 22. Language suffix 26. Judge's seat 28. Marina del __, Cal. 29. Result of a bug bite 30. Like a peacock? 32. Son of Seth 33. Do mailroom work 34. "Rush!" letters 35. Stubborn equine 36. Beatles album of 1969 38. Part of SRO 41. Baba __ (Gilder Radner role) 42. Crime head 43. In __ (not yet born) 48. Store, as fodder 49. __ out (barely manage) 51. Morally degraded 53. Boggy area 55. Do figure eights 56. Take effect 57. "__ my case!" 58. Spy __ Hari 59. __ one's loins (prepare for action) 61. Toledo's lake 62. Artist Magritte 63. Cry like a banshee 65. Capp's "__ Abner" Copyright © Fred Piscop