Happy Birthday

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Across
  1. 1. Beachside spot known for top-notch fish tacos (5,7)
  2. 6. Soundtrack to a soaking on a sixth-form trip (7,7)
  3. 9. Barley burner turns into a drinking spot (4,4)
  4. 10. Four close family ties (5,5,4,6)
  5. 11. Northern institution where scholars graduate in capital (7,10)
  6. 14. Founding figures of the family (5,7)
  7. 17. Two girls share a connection (3,4)
  8. 18. Cousin who joined for an Irish sailing adventure (4,7)
  9. 19. Sixth-form band with a singular name (3,4,5)
  10. 21. Coastal gatherings filled with fun (8,5,7)
  11. 23. Legendary giant or great Pearson dog (4,5)
  12. 24. Friend from a time of shared purpose (5)
  13. 27. Relative who provided a boatload of opportunities (5,4)
  14. 28. Skipper guiding youth on a united course (4,7)
  15. 29. Pale steed gallops to the pub (5,5)
  16. 31. Glamorous film capital, or a sixth-form night out(10)
  17. 33. Trio from sixth form, bound together in friendship (6,7,4)
  18. 34. Public sailing limb—mix it up for a nautical group (7,7,4)
  19. 37. Community where one laboured, dropping a club (7)
  20. 42. Advanced stage at gateway to knowledge (9,5,4)
  21. 44. Pic Stag do justice served in wooden restraints(6,5,6)
Down
  1. 1. Annual contest with a punch
  2. 2. Town provides refuge in the dark for those in need (7,5,7)
  3. 3. Skipper's epic voyage from Irish port to Scottish harbour, crewed by apostles and more (4,5,7)
  4. 4. Occasional offshore competition from the crew (6,7)
  5. 5. Pitch-perfect way to enjoy the outdoors (7)
  6. 7. Friend and fellow Kibbutznik now down under (3,5)
  7. 8. Friend from Manchester, somehow leg-hens (7)
  8. 12. Intensely expressive Beethoven piece (12)
  9. 13. Family member with a wagging tail (5)
  10. 15. Fast and furious card game with devilish competition (6,6)
  11. 16. Fishy fillers for nostalgic outings (7,10)
  12. 20. Stag night stop with a nautical name (5,6)
  13. 22. Long-time sailing competition Chris raced in (5,6)
  14. 25. Preferred vessel for a drink (5,2,1,3)
  15. 26. Relative’s answer to a ring from across the water (4,4)
  16. 30. Famous overnight ride fuelled by determination (7,6)
  17. 32. Actor and his Swedish wife, guests at the Poplars (6,7,7)
  18. 35. Not-so-brave sixth formers braving the River Wye (6,2,5)
  19. 36. Choir looking ahead (6,6)
  20. 38. Long-running passion (9)
  21. 39. Foremost in severity, she sounds grim and imposing (3,8)
  22. 40. Religious group accommodates worker for over 20 years (7,5)
  23. 41. A closing act! Loyal pet’s final move (4)
  24. 43. Father’s vessel with a Renaissance touch (6)