Red Standard Crossword #3

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Across
  1. 4. Gem from an oyster
  2. 6. The eponymous character of one of Orson Welles' most famous movies
  3. 7. The nation name of the current Minister of Culture
  4. 8. __ and seethe
  5. 9. Power, force
Down
  1. 1. The feds
  2. 2. __, the highest stage of capitalism
  3. 3. The 'father' of Protracted People's War
  4. 5. A river of Hades
  5. 7. Held on to