Maysday 2017

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Across
  1. 2. First grandchild and last descendent of Shakespeare (4)
  2. 4. First woman surgeon (7)
  3. 5. Director of 'The Dark Knight' and 'Dunkirk'(5)
  4. 9. Wrote biography of the writer buried at St Pancras Old Church (7)
  5. 10. One who jousts? (7)
  6. 13. The Saxon word is sparhavoc (11)
  7. 15. Ice hockey for 11 players (5)
  8. 16. England cricket captain 1999-2003 (7)
  9. 17. Snowed (anag)
  10. 19. Baseball player awarded the Presidential Medal of Freedom in 2015 (4)
Down
  1. 1. Stopped the segregation of US streetcars in 1855 (8)
  2. 3. Authur of the earliest surviving book on Chess (6)
  3. 6. French for 'the friend' (4)
  4. 7. Iron Maiden's first drummer (8)
  5. 8. Flybie (anag)
  6. 11. 'Old Whig' and philosophical founder of modern conservatism (5)
  7. 12. Established world's first infants school in 1816 (4)
  8. 14. Most rebellious Labour peer (7)
  9. 16. Jeffrey (5)
  10. 18. First conductor of the 'Proms' (4)