Only a ruddy crossword!

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Across
  1. 2. an underwater vehicle which doesn't provide a dry environment for its occupants
  2. 6. Hmm, makes you think
  3. 7. ah, great
  4. 9. this ancient korean dish is often kept in it's own specialised fridge
  5. 11. Venus's reluctant lover in the shakespeare poem whose death gives colour to flowers
  6. 12. Marsupial that leaves cubic feces
  7. 13. Filled with custard, topped with cream
Down
  1. 1. Your favourite guy who has great hair n that
  2. 3. The son of schizophrenic Diana
  3. 4. What "David" links politician John McCain, director David Lynch and tennis player Michael Joyce
  4. 5. A span of eight musical notes
  5. 8. This synonym for gadget shares it's name with a fun little guy
  6. 10. The name of a roman province in modern day portugal, shares it's name with a famous ship