Related Clues:

• Edelweiss-adorned peak
• Shelf breakaway
• Glacial floater
• Ostspitze, e.g.
• It's mostly underwater
• It's frozen and floating
• A floating mountain
• Huge mass of frozen water
• Maritime danger, mostly underwater
• Large mass of floating water
• Large floating mass of frozen water
• Floating mountain
• A floating ice mountain
• Mass of floating ice
• Type of crisp lettuce