Across:
   1. Fast vehicles in quiet avenues (6)
   4. Turned page, not getting new figure (8)
  10. Galliano perhaps, 18 one with an ice cream? (7)
  11. More cool when singer gets fully sick (7)
  12. As traditional US enemy, they object (4)
  13,31. 6 with large dispute about passable Queen cover of "Jazz" (5 5 6)
  15. Model's poor start with bad diagram (8)
  17,19. Where Reagan had a role in "Casablanca"? (5 5)
  19. see 17
  21. Socialist's ill feeling caught what 24 operatives did to 1 across (8)
  24,29. Americans call this during crises attending changes of direction, and 2 down plot targetting 4, 13 31 and 17 19 (4 6 7)
  26. This purports to provide motivation (4)
  28. Dropping sodium, kill 19 wrecker (7)
  29. see 24
  30. E-scooter disrupted extraction of oil (8)
  31. see 13
Down:
   1. Spoilt characters who direct 1 across (6)
   2. Organisation where all equal? Ends at odds! (2-5)
   3. Tailor mostly turned to wool producers (4)
   5. Do well scraping surface off gamete (5)
   6. 13 31 in time before darker times holding cry of pain (4 6)
   7. Toe parts kicked back in a voltage as he zapped legs (7)
   8. Vikings perhaps, but with no real spunk (8)
   9. Pass over poor return, King being less rigid (8)
  14. State prosecutor Palmer and director Hoover worried about these crazy people! (10)
  16. Leave dim crook in dark times (8)
  18. Lyrical embrace of human extremes of sound (8)
  20. Nun, ever working, as 24 29 were intended to do (7)
  22. Being shy about quiet deviant act? One would do likewise! (7)
  23. Some prefer a serious rubber (6)
  25. No right to knock back instruction for 1 down when 1 across going down? (5)
  27. Bacterial infection destroyed a yeast mixture (4)