16.

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Across
  1. 2. What"s left on account before start of year (6)
  2. 3. Connecticut politician Lamont who beat Joe Lieberman in the 2006 Senate primary only to lose to him
  3. 6. Money put into account
  4. 13. Not put into report for Independent? (9)
  5. 14. Show aggression to driver - take a knife to him?
  6. 15. Set of parts around ship belongs to him offering advice to Blarney Stone tourists (8)
  7. 18. She"s in charge since to be in debt is up to him (9)
  8. 19. Versailles was noted for this feast before start of year (6)
Down
  1. 1. It's up to him to see the government gets its due
  2. 4. Is it up to him to appear relatively unruffled?
  3. 5. Relating to Moses or the laws ascribed to him (6)
  4. 7. Inventors go to him to make tepee in a sort of pageant (6,5)
  5. 8. Where money's concerned, you've got to hand it to him (5)
  6. 9. Pole has to look after a sister senior to him
  7. 10. Groundsman swears by it and the judge has to listen to him (10)
  8. 11. Small images providing Lawrence with music to bring to him (8)
  9. 12. Aware special constable is on to him, criminal promises to pay
  10. 16. Business information put into account before start of year (6)
  11. 17. Friar Laurence said to him, "Thou art wedded to calamity"
  12. 20. Hard worker had little bit back before start of year (6)