Related Clues:
- What sunk the Titanic
- Floating sheet
- Main hazard when diver starts to cough it up
- Expanse of frozen water witches followed regularly
- Lettuce that has hidden depths?
- Large block of frozen water
- Shipping hazard, even traces of zinc, diver raised
- Hazard of polar seas
- I feel cold (not half) at sea
- Something fallen off a shelf?
- Cig with beer cocktail? ``Avoid it!'' says the captain
- Formality over issue, say, of cold sheet at sea
- Titanic breaker
- Frozen shipping hazard
- Wrecker of Titanic