Related Clues:

• Ice sheet
• Unemotional person
• Arctic ice
• Arctic Ocean hazard
• Lettuce type
• Floating mass of frozen water
• Arctic mass
• Baffin Bay hazard
• Renewable freshwater resource
• Floating lettuce?
• Salad choice
• Polar bear's transport?
• Hard-to-get-to-know person, so to speak
• Antarctic sight
• Drifting ice chunk