nUMBER 4

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Across
  1. 2. Zero bins only camoflauge shipwreck survivor (8)
  2. 4. City protection surrounds expletive made polite (9)
  3. 6. Iron horse? (4)
  4. 7. Sh! Lingo regularly viewed as hurting ego (8)
  5. 11. What, reportedly, made Gordion famous (3,5)
  6. 12. Once reflected contract law (5)
  7. 15. Ticker exhaled in speech (4,4)
  8. 16. Coffee shop somewhere between Scottish captial, mid-Wales and the heart of England (7)
  9. 18. Anger loses energy but gains force in prison (4,4)
  10. 19. Demonstrate during pogo stick lesson (8)
  11. 20. Smuggled into Harris on floundering Celt ski (8,7)
  12. 24. Seafarer outstrips sailing speed with extra time (8,6)
  13. 29. Business leader sprinted endless avenue (9)
  14. 31. Heather on the heath (8)
  15. 33. Greek Romeo dons waterproof hat in part (4,5)
  16. 34. French popstar meets entomological superhero (8,3)
  17. 35. Slab once shattered (8)
  18. 37. Mist closing in around tops of giant hills, hardly even accessible (6,4)
  19. 38. Remarkably no end to Golgotha (5,5)
  20. 39. Genuflect then chop down (7)
Down
  1. 1. Transaction caught canvas (4)
  2. 3. Bowler stops abruptly making room for some chancers and beginners (8)
  3. 5. Sporting group of competitors comes to beautiful meadow (9)
  4. 6. Country house where elderly relative introduces half-cut gent (6)
  5. 7. Stag tucking into raised dipping bread (4,7)
  6. 8. Spooner's bunny boiler (5,4)
  7. 9. Protracted grounds found in colon glands (9)
  8. 10. Beheaded torture follows gallows, not half (7)
  9. 13. Eronneously links parentage (9,5)
  10. 14. Tom calls to put all the bad leaders in cells (8)
  11. 17. Manage inferno replacing a learner with a master (4)
  12. 21. Perused for auditors (3)
  13. 22. Part of Birkenhead put up in preparation for space transformation (9,4)
  14. 23. Three dunderheads gather around job centre (4)
  15. 25. Less than half corroded (4)
  16. 26. Note concering a catalyst, not mentioning the queen (5,4)
  17. 27. Stringed instrument suffuses original soundtrack playback (7)
  18. 28. Ranchero not looking after fowl (5)
  19. 30. Bag stream in the north dialect (9,6)
  20. 32. Huge stink needs no introduction (5,4)
  21. 34. The drink served strangely with tea (10)
  22. 36. Appropriate for eavesdroppers (5)