BT's Board Game Puzzle

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Across
  1. 2. Portugese tile abbr.
  2. 4. Fortress
  3. 7. Drunken outburst?
  4. 9. Rustic soda?
  5. 11. Imperium struggle?
  6. 12. Associated with apples or figs
  7. 14. Fiefdom
  8. 16. High-ranking officer
  9. 18. Skin condition
  10. 20. "A Christmas Carol", etc.
  11. 21. Occasional pirate need?
Down
  1. 1. Big
  2. 3. Transparently tragic
  3. 5. Not Constantinople
  4. 6. Jahan's burial city
  5. 7. Color for castles?
  6. 8. At the source
  7. 10. Classic renamed in 2015
  8. 13. Requirement for raising a child
  9. 15. Grim companion?
  10. 17. Pie variety
  11. 19. Mysterious man in many boxes