Gassy Christmas Cryptic 2025

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Across
  1. 4. Another cause of rota gaps - get a trainee in this instance! (2,4)
  2. 5. Centre to end cuts worsens flow? (6)
  3. 6. Military can't partake in the end of First Reich reportedly (6)
  4. 7. Intermittent bleed surprises surgeon - gives anaesthetist something to do (3,2)
  5. 9. Slip over the rocks due to precarious footwear (3,5)
  6. 12. Ventilator disregards internal back-up (6)
  7. 13. As meek as a consultant who does transfer (4)
  8. 14. Position atop a lover will create a moist enviroment to embrace the French method of entering the mouth to the find heart (9)
  9. 16. It's the flaw damaging Allan's app inspiration (4,6)
  10. 17. Fun ratio for relaxation? (5,2,4)
  11. 19. Long for christmas tree (4)
Down
  1. 1. This season's batch of spice added to stimulants will bring ED reg a crazy shift (11)
  2. 2. Detrimentally smear rich MP - just one popular month then suddenly out of fashion (9, 6)
  3. 3. Snow can make you numb (7)
  4. 5. The first gated ion channels in real blocks (8)
  5. 8. All anaesthetists have these for two rotations (8)
  6. 10. Doing this gave me raised trops!(5)
  7. 11. Response seen in majority of vaginal surgeries? (5)
  8. 15. A glass of mulled wine helps if you switch it on (6)
  9. 18. Introducing Allan's insightful publication "How data is a way to extend training" (2, 3)