PUZZLE 40

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Across
  1. 4. Composer of Swan Lake music (11)
  2. 6. National animal of Scotland (7)
  3. 8. Largest internal organ of the human body (5)
  4. 12. Longest of Shakespeare's plays (6)
  5. 15. The world's deepest ocean trench (7)
  6. 16. World's largest archipelago (9)
  7. 17. Closest planet to the sun (7)
  8. 18. Primary ingredient of sushi (4)
Down
  1. 1. Planet known as Earth's twin (5)
  2. 2. National animal of England (4)
  3. 3. Longest river in Europe (5)
  4. 5. Earth's outermost layer (5)
  5. 6. Country that won the first FIFA World Cup in 1930 (7)
  6. 7. Name of Bridget Jones's baby (7)
  7. 9. Sport that contains a coxswain (6)
  8. 10. Queen Elizabeth II's surname (7)
  9. 11. Fastest land animal (7)
  10. 13. Capital city of Spain (6)
  11. 14. River than runs through the city of Dublin (6)