Dad's 73rd Birthday Cryptic Crossword

1234567891011121314151617181920212223
Across
  1. 2. Not that one, but still a good education (6)
  2. 7. Share with this dragon slayer (5,6)
  3. 8. Swing low, sweet stoop (10)
  4. 10. Famous punchline (5,3,6,1,5,3,2,2)
  5. 12. I've got it, you've got it, your dad had it, but Ross doesn't have it (4)
  6. 15. Spare toilet paper (5,4)
  7. 16. Infamous culinary delight (4,3)
  8. 17. Doom and gloom (5,3,5)
  9. 19. It's knight and day between us lately (5)
  10. 20. Can you conquer John before sunrise? (4)
  11. 21. Move them out of the way for Reg Dwight (5)
  12. 22. Cracker of a clam in-joke (5,8)
Down
  1. 1. ...when a lady grabbed me by the arm (1,3,7,4,5,5)
  2. 3. Rarebit origin (7,4)
  3. 4. Did the wheels come off or did you just forget your sandwich? (2, 4)
  4. 5. The muck and bullets of retirement (9)
  5. 6. Keeping fit next to Mikey's (8)
  6. 9. Is your library bankrolling his perjury trial? (7,6)
  7. 11. Sweet trade (5)
  8. 13. Getting ready for queen and country (6)
  9. 14. Dirty Harry and his Welsh friend raid the castle (5,6,4)
  10. 18. The 70s called and want their lip ornament back (9)
  11. 23. Driving in four rings (4)