Consider the Source

Across 1. Shake additive 5. Puddles or Clarabell 10. Curious spheres 14. President of the Twelve Colonies 15. Socially forbidden 16. Solid win 17. Smallest amount 18. Unproven premise 19. Poop, to Guillermo 20. Final leftovers 22. Mom's partner 24. Celestial canvas 25. Beginning of quote by 8-Down/37-Down 30. "Tippe___ and Tyler Too" 31. Semitic scholar 33. Southern constellation resembling an altar 36. Joint cushion 38. Massage deeply 39. Foam weapon 41. Young salmon 43. Sharpshooter William 44. Sinclair who wrote "The Jungle" 46. Map book 48. Counter the effects of gravity 49. Deli unit 50. Troy shiplauncher 52. End of quote 58. First TV brand 59. ___-na-na 60. Concur 61. "To ___ his own" 63. Whole 67. Provoke (to action) 68. "___ girl!" 69. Michael from REM 70. Pig fat 71. Bother 72. "Steppenwolf" author 73. Craft website

Down 1. Eight ___ a-milking 2. Cherish 3. Skin-tight clothing material 4. Not funny at all 5. "L" train org. 6. Not careful enough 7. ___-wan 8. "Toy Story" cowboy 9. Homeless wanderer 10. Tolkien grunt 11. National dish of England 12. Spherical fullerene 13. Maurice Williams song 21. "___ tahT tuobA llA" 23. Detective Gently 26. Obligation 27. Marilyn's given name 28. Country within South Africa 29. Diatribe 32. Without intention 33. Biological exit 34. Make copies of 35. Unintentional remains, like tools 37. Kind of wrench 40. Ovals' centers 42. "A ___ of Two Cities" 45. Hoop attachments 47. Medical liquids 51. Persistent quibble 53. Librarian's command 54. Infernal travel writer 55. Medieval fourpence 56. Senses aurally 57. Nightie 58. Harvest 62. Topper 64. Not trans 65. FedEx competitor 66. Hole start Solution