Monty Python and the Holy Birthday

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Across
  1. 5. Lane Clark Kent's better half?
  2. 6. Big Bull?
  3. 7. Second in Command to Hank the Cowdog
  4. 8. Beatrice is civil as one
  5. 10. Served in a shack? Abbr.
  6. 12. Birthplace of Rocky Harris
  7. 13. Mt. Gretna Abbr
  8. 16. Long Dash
  9. 17. Sir Cedric does this
  10. 23. Fish for dinner?
  11. 24. Can be Shade Grown?
  12. 27. Wallace Shawn Exclamation
  13. 29. Wine country
  14. 31. The Boss?
  15. 32. Family Business?
  16. 33. Place for gnocchi
  17. 35. Zero Longitude
  18. 39. Hugh of Four Weddings
  19. 40. Breakfast for dinner?
  20. 41. Moves in an L shape
Down
  1. 1. The first state
  2. 2. February 16th
  3. 3. Sebastian _______ Bain
  4. 4. Woodridge Drive location
  5. 9. What is the airspeed velocity of an unladen swallow?
  6. 11. Shakespeare's theatre
  7. 14. BOGO
  8. 15. What is your quest?
  9. 18. Not Neeson
  10. 19. Wegman Leading Lady
  11. 20. It's sticky and fuzzy
  12. 21. Place for ice cream
  13. 22. Famed Salad Dressing Mixologist
  14. 24. Secret Password
  15. 25. Unusual juice variety
  16. 26. Seminal Work of Composition Rhetoric
  17. 28. Famous Flower of Song
  18. 30. The Rev?
  19. 34. What is your name?
  20. 36. Corky buys most of her clothes
  21. 37. Lincoln, Harris, and others
  22. 38. "Fetchez la________!"