Attempt number 2

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Across
  1. 2. The vegan teachers friend
  2. 4. da boss
  3. 6. Big brother, but little brother
  4. 8. Get out! Go!
  5. 11. With Winston
  6. 13. Bedelia
  7. 15. Knee-breaker
  8. 17. Adorable baby face
  9. 18. Fan of the salamander before he drank the goo
  10. 19. 0.5 BFF (this is a really hard clue)
  11. 22. Quiet....but cheeky?
  12. 24. Flip and tumble
  13. 25. EEEEEEE
Down
  1. 1. Language coach
  2. 3. Blue pigtails or not?
  3. 5. Patient big bro
  4. 7. New pooch
  5. 9. Newbie
  6. 10. Named after a racing legend
  7. 12. Big blows
  8. 14. Soccer star
  9. 16. Roblox dude
  10. 18. Frill neck lizard in disguise?
  11. 20. Little old lady baby
  12. 21. Rock Astley
  13. 23. Team player