Across
- 3. Generic term for sails, although they're not generally made from it these days (6)
- 5. Inflatable boat protectors (7)
- 6. Shiny decorative Christmas strand (6)
- 7. Yellow and black buoy denoting the safe side to pass (8)
- 8. Visibility restriction (4)
- 10. Last day of the year in Scotland (8)
- 11. Traditional accompaniment to Christmas Pudding (6,6)
- 12. leading Protagonist in the failed gunpowder plot of 1605 (3,6)
- 16. Ninety degrees North latitude, said to be the home of Father Christmas (5,4)
- 17. A very good thing to do when the wind gets up, and a bad thing to get too close to (4)
- 19. Obligate, hemiparasitic plant of the order santalales, underneath which it can be pleasant to stand during Yuletide! (9)
- 20. Father Christmas's propulsion units (8)
- 21. Scottish phrase meaning "times gone by" or "long, long ago" (4,4,4)
Down
- 1. You'll find one on the foredeck and in in church (6)
- 2. The name commonly given to All Hallows Eve (9)
- 4. Perfect for roasting on an open fire when Jack Frost's nipping at your nose (9)
- 5. Gentle Breeze on the Beaufort scale (5,5)
- 9. Decorated with bunting in harbour to celebrate a special occasion (7,7)
- 12. Very strong wind (4)
- 13. Pyrotechnics (9)
- 14. Source of poor jokes and paper hats (8)
- 15. Pressure measuring instrument (9)
- 18. Place to moor your boat, or card game (7)
- 22. Italian city, or foresail (5)
- 23. Two-masted rig with the mizzen mast aft of the rudder post (4)