Andrew's B-day Puzzle

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Across
  1. 2. the good doctor
  2. 7. panic
  3. 9. an elven archer
  4. 11. spherical place to watch movies
  5. 15. a certain nickname
  6. 17. dead bird
  7. 19. youtuber with essay-style videos (9,4)
  8. 20. one train
Down
  1. 1. a delicious cold treat
  2. 3. one-eyed handyman
  3. 4. this zone looks lovely at certain times of the year
  4. 5. laid back baseball manager, literally
  5. 6. an ill-advised chess opening
  6. 8. "i once met a girl named ---"
  7. 10. falsification
  8. 12. an evil AI robot
  9. 13. classic web game about acronyms
  10. 14. flat area not much higher than sea level
  11. 16. a particle of alien origin, often blue
  12. 18. a beautiful game