Brain Worms

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Across
  1. 2. God, title for landed gentry (4)
  2. 5. Espionage agent (3)
  3. 8. European country, borders the Black Sea, geologically active (7)
  4. 10. Cache, treasure, collection (5)
  5. 11. Sea-faring military (4)
  6. 12. Ten years (6)
  7. 14. Earth's natural electrical current (8)
  8. 16. Ambiguous, arcane, cryptic (6)
  9. 17. Canaanite kingdom south of Israel (4)
  10. 19. Common earth, dirt (4)
  11. 20. To tarnish, spoil, damage something's purity (8)
  12. 21. Saint, Apostle of Christ, First Pope (5)
  13. 23. 8th century BC Israelite prophet, Old Testament Book(6)
  14. 24. Empire, fought the Russian Coalition during the Russo-Turkish War 1877-1878 (7)
  15. 26. Outdated term for animate, quicken, to endow with life (6)
  16. 29. Obsession or imitation of East Asian cultures (11)
Down
  1. 1. Tale of the future, told by an oracle or seer (8)
  2. 3. Study, investigation, educate oneself on a subject (8)
  3. 4. Geology study concerning geochemical phenomena (11)
  4. 6. 19th century horror novelist (4,6)
  5. 7. European Island, made up of three countries (5,7)
  6. 9. Abrv. UK intelligence department of Admiralty 1887-1912 (3)
  7. 13. Collection of documents on a single subject (7)
  8. 15. To employ, enlist (7)
  9. 18. Mystical or supernatural phenomena (6)
  10. 22. Blood-sucking monster (7)
  11. 25. Mesopotamian and Jewish she-demon (6)
  12. 27. Sleep, relax, restore (4)
  13. 28. Bird of prey (4)