Giant quick crossword

Across

1. Adage (7) 5. Repeatedly (5) 8. Dusk (7) 12. Provoke (4) 13. Greek letter (5) 15. Colourful phenomenon in the sky (7) 17. ‘Workers of the world, ___!’ (5) 19. Source of light (3) 20. Curve (3) 21. Preside over a meeting (5) 22. Gone (8) 23. Of little importance (7) 25. Spaceman (9) 28. Probable (6) 31. Precipitous (5) 35. Drug addict (4) 36. Result from (5) 37. Shrewd (6) 39. Building for buses (5) 40. Wrath (5) 43. Radioactive material (7) 45. None (3) 46. Recede (3) 47. Confer an honour upon (7) 49. Shelf (5) 52. Extreme disorder (5) 53. Sth American animal (6) 54. Pig food (5) 55. Church recess (4) 57. Spike used by climbers (5) 60. Push forward (6) 64. Be vaguely familiar (4,1,4) 66. Make airtight (4,3) 68. Hold sacred (8) 69. Go in (5) 72. Fowl (3) 73. Colony insect (3) 75. Oneness (5) 76. Downward movement (7) 78. Perfect (5) 79. Slender (4) 80. Unrelated line of thought (7) 81. Ancient gold coin (5) 82. Pool or card shark (7)

Down

1. World (6) 2. Sound of an accident (4) 3. Style, flair (Fr) (4) 4. Keg (6) 5. Paper art (7) 6. Self-esteem (3) 7. In these times (8) 8. Teacher (8) 9. Impressive or heroic (4) 10. Thought (4) 11. Strangle (8) 14. US military vehicle (6) 16. Wash (5) 18. At that time (4) 22. Wipe (3) 24. Furrow (3) 26. Drama set to music (5) 27. Attacker (9) 29. Enthusiastic (4) 30. Entice (4) 31. Move furtively (5) 32. Growth (9) 33. Irish male name (3) 34. Make amends (5) 38. Of great stature (4) 41. Deity (3) 42. Scottish dance (4) 43. German submarine (1-4) 44. Stone worker (5) 48. Lightweight wood (5) 50. Water jug (4) 51. Pant (4) 52. Place a limit on (3) 54. Army rank (8) 55. Transparent purple gemstone (8) 56. Magnificent (8) 58. Away from the coast (6) 59. Lout (3) 61. Desert waterhole (5) 62. Sincere (7) 63. Sheltered side (3) 65. Scottish valley (4) 66. Police informant (colloq) (6) 67. Antenna (6) 70. Rotate (4) 71. Fully developed (4) 73. Assists (4) 74. Greenish-blue colour (4) 77. Australian bird (3)