16th nov puzzle

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Across
  1. 1. To start (5)
  2. 6. City where the Golden Gate Bridge is located (3,9)
  3. 8. Animal known as 'the ship of the desert' (5)
  4. 11. Tallest Mountain. 'Mount ______'(7)
  5. 14. Clark Kent is known by what other name (8)
  6. 15. Country with the largest population (5)
  7. 16. Brave (10)
  8. 19. Capital of Canada (6)
Down
  1. 2. To explain (9)
  2. 3. Name the Ocean beginning with 'P'(7)
  3. 4. To ruin (7)
  4. 5. The season with the most days (6)
  5. 7. July was named after this historical figure (6,6)
  6. 9. Last name of the first Australian Prime Minister (6)
  7. 10. The country that drinks the most coffee per year (7)
  8. 12. Closest planet to Earth (5)
  9. 13. First name of the first female Australian Prime Minister (5)
  10. 17. The national animal of Scotland (7)
  11. 18. Italian word for ice-cream (6)