Old King's Pupils (surnames, no punctuation included)

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Across
  1. 5. First black person to play association football at international level, for Scotland
  2. 6. Responsible for the Covid-19 Vaccination Programme
  3. 7. Lead singer of the band Bastille
  4. 8. Winner of multiple men's doubles Grand Slams, former world no. 1
  5. 9. Former secretary of the AELTC, responsible for the Wimbledon Championship's relocation to its current site
  6. 11. Star of The Chronicles of Narnia: Prince Caspian
  7. 12. Founded the Pre-Raphaelite Brotherhood, prolific painter
  8. 13. Star of United 93, The Kite Runner, Green Zone and The Crown
Down
  1. 1. Youngest person to have raised VC funding in the world
  2. 2. Great nephew of the last Russian emperor, Nicholas II
  3. 3. Founder of Betfair, the world's largest bet exchange
  4. 4. 2 brothers who present Operation Ouch! on CBBC
  5. 8. Physiologist who discovered hormones
  6. 10. Former director of the Bank of England