The chemist's Christmas comedy cryptic crossword

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Across
  1. 3. Underwear for GORD
  2. 5. A fine wine
  3. 6. Jazz instrument for diabetes
  4. 7. Tell me something
  5. 9. You might find this in te christmas cake
  6. 12. The drug that greets you
  7. 13. Mouse from Vancouver
  8. 15. You might find this down a mine
  9. 16. The smallest drug known to man
Down
  1. 1. Why is there no aspirin in the jungle?
  2. 2. The drug that gets pedaled the most
  3. 4. Grant Grastim's brother
  4. 8. Ayrton's got constipation
  5. 10. A fish on a bicycle
  6. 11. A drug that makes you laugh out loud
  7. 14. A waxy coloured pencil