Nick Squared

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Across
  1. 2. Arcade aim
  2. 5. Ring-a-ding dinger
  3. 7. The personification of "good news"
  4. 12. Her many namesakes include a "Great" queen
  5. 14. Onetime star of the PM's Delivery Unit
  6. 15. Someone who "finds something that works in practice and wonders whether it would work in theory" according to a popular definition
  7. 17. Double-barreled name shared by a onetime swedish princess and Greek queen
  8. 18. New-Age titan associated with combustible horse-drawn conveyances
  9. 20. Ultimate answer to the mystery of the universe
Down
  1. 1. Suburban namesake of a mythical muscleman
  2. 3. Sacrificial Mycenaean princess
  3. 4. Alter ego for Amal Coomes Inc
  4. 6. Traditional leather maker
  5. 8. The king of eventful journeys
  6. 9. Tasty de-compiled kernels
  7. 10. Plumb pair
  8. 11. Error message for 5 across
  9. 13. Team with the highest average Premier League position in the 20th century
  10. 16. Inspector ---: clumsy cartoon cyborg
  11. 19. upstart google rival