Liam's 21st Birthday

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Across
  1. 2. Acrophobia, a fear of?
  2. 5. Colour belt before Black in Karate
  3. 6. Chemical symbol Pb
  4. 8. Your Birthday Present <3
  5. 10. Only British PM to be assassinated
  6. 11. Green ball in snooker worth
Down
  1. 1. Golf ball indentations
  2. 3. 1982 World Cup winner
  3. 4. Typical summer Sunday afternoon meal
  4. 7. Animal symbol of US Democratic Party
  5. 8. Artists with the most streams on Spotify
  6. 9. Original company named "Cadabra"