SEFS crossword September

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Across
  1. 3. Geometrical name for a triangular pyramid (11)
  2. 4. Package of DNA (10)
  3. 6. Sport in which Alex Yee won gold at the Paris Olympics (9)
  4. 8. Molecules that combine to form proteins (5,4)
  5. 10. Surname of SoS for Energy Security and Net Zero (8)
  6. 12. Surname of the Chancellor (6)
  7. 13. Largest Central American country (9)
Down
  1. 1. British tennis player currently competing in the US Open
  2. 2. First name of singer who recently released 'Short n' Sweet'(7)
  3. 5. Villian in Disney film 'A little mermaid' (6)
  4. 7. One of two egg-laying mammals (7)
  5. 9. May birthstone (7)
  6. 11. First name of actor that plays wolverine (4)