UK

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Across
  1. 5. His Majesty the King, head of state
  2. 7. Capital of the UK
  3. 8. Renowned English playwright
Down
  1. 1. Biggest nation in the Kingdom
  2. 2. Royalty's palace
  3. 3. British government
  4. 4. Classic English drink
  5. 6. River flowing through London