Related Clues:

• Salad choice
• Hard-to-get-to-know person, so to speak
• Antarctic sight
• Romaine alternative
• Ice mass
• "Lulu" composer
• Glacier fragment
• Arctic Ocean obstacle
• Arctic Ocean sight
• 'Wozzeck' composer
• Arctic hazard
• Icy hazard
• Titanic thwarter
• Navigation hazard
• Titanic problem