The Great Semi-Cryptic Year-of-the-Pandemic Crossword

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Across
  1. 3. popular with vegans but not with Swiss dairymen
  2. 4. a passion of Alex and the game featured in a Netflix smash
  3. 8. loved by ze Germans but less so here - "tubular"
  4. 9. you've ridden them (think radio) in Carcans Plage
  5. 11. is learning how to save us from ourselves
  6. 12. your godfather's (strong) tipple of choice
  7. 14. the Beatles told him to "roll over!" His 250th was this month
  8. 15. is pursuing ground-breaking technological developments
  9. 17. what you have done on the white pistes but I haven't (again, think waves)
  10. 18. next stop on the orthopedic road?
  11. 20. the betting cube!
Down
  1. 1. character in all 3 parts (and has my initials)
  2. 2. 7th in list, the 1st one of he with birthday on the 7th!
  3. 5. I saw 3 ships come _________ in on Xmas Day in the morning! (a Gilles hobby)
  4. 6. type of surgery I have just had
  5. 7. her profession is awakening a passion for learning
  6. 10. It's going to be 50 degrees...!
  7. 13. He dies in Part II (what's my title?)
  8. 16. deadly iced tea (4,6)
  9. 19. ship of the skies with a troubled recent history (3#s,3)