Quadruple-U by Fred Piscop

Across 1. Film flop 5. Bandleader Xavier 10. Pirate's quaff 14. Mideast bigwig 15. River to the Missouri 16. Went by bus 17. Social outing 18. __ of Troy 19. [ding-dong] "__ calling" 20. Post-Cold War power arrangement 23. Airline to Stockholm 24. Born, in bridal bios 25. Like many a bog 28. NATO member 31. Rock bottom 35. Strong temptation 36. Like a football, before kickoff 38. Santa __, Calif. 39. Lehar work, with "The" 42. Crackerjack pilot 43. Punctual 44. "A __ technicality" 45. Porterhouse, e.g. 47. "You bet!" 48. Flattens, in the ring 49. Toupee, slangily 51. Strauss's "__ Rosenkavalier" 52. Cohabitant of sorts 59. Mob bigwig 60. Wavy pattern in fabric 61. Fill with cargo 63. In the strike zone 64. Cyber-sales 65. Place to wait 66. Declare false 67. Convened anew 68. Like the Sabin vaccine

Down 1. One "B" in B&B 2. Muscat's land 3. Tiny pest 4. "Punky __" ('80s sitcom) 5. Pacific salmon 6. Exploitative type 7. Unmitigated __ 8. Turned gray 9. Mortise mate 10. Like good eggs 11. Wander about 12. Garlic quality 13. __-Xers (boomers' kids) 21. Very, in teen slang 22. Extend, in a way 25. Big cats 26. How we stand 27. Come to terms 28. Togetherness 29. __ Hawkins Day 30. Molecule builders 32. Name in Chicago politics 33. Emcee's task 34. Tears to the ground 36. MYOB part 37. Merino mother 40. Li'l Abner's family name 41. Texas Panhandle city 46. National Guard center 48. England's __ Gardens 50. Pyle of Mayberry 51. Resided 52. Spelunker's milieu 53. Ready for business 54. Symbol on a staff 55. Neeson of "Michael Collins" 56. Indy driver Luyendyk 57. Worth a C, perhaps 58. Novelist Ferber 59. New England catch 62. Sushi order Copyright © MacNamara's Band, Inc.