Related Clues:

• Has rifts (anag)
• One found at sea taking angle on Polaris, for example
• Well-armed customer runs, following one in store
• As swimmer, sailor beginning to flounder is sinking in silence!
• Marine invertebrate
• Spooner's somewhat quick marine creature
• Rod, some might say, is first of hazards for a marine creature
• Celebrities' favorite seafood?
• Pin-up sought by angler is a pretty marine type?
• Brilliant swimmer with five arms
• Marine life-form that has first place
• Pisces?
• Creature seen from brilliant angle
• A swimmer has first to get changed
• Sea creature has first to swim