Related Clues:

• Sounds like a glacier, and that's flat
• Sounds like a glacier
• It sounds like a glacier, perhaps
• The sound of the glacier is only a sheet
• 'Glacier? (3,4)'
• Polar hazard
• Arctic sighting
• Floating arctic mass
• Traveller of low degree needs company, I feel
• Frozen floating object
• Piece of ice at sea
• Separated piece of ice on water
• Setting for some cool Coca-Cola ads?
• Enemy holds sovereign in frozen waste
• Ice formation