Happy 21st Birthday!!

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Across
  1. 3. Streaming platform for series marathons
  2. 5. Adornments that sparkle
  3. 9. Film music that follows the action
  4. 11. Large ensemble, not a solo act
  5. 12. End of day seen when sun goes down
  6. 13. Shiny cosmetic that’s not lipstick
Down
  1. 1. Making cakes, say, in the oven
  2. 2. Holiday activity where tent is essential
  3. 4. ONE Racing series where seconds matter
  4. 6. Boots suitable for wet conditions
  5. 7. Outdoor meal, no kitchen required
  6. 8. ONE age reached after twenty, but before twenty-two
  7. 10. Place to jot ideas down