Related Clues:

• Wave source
• Source of breakers
• Hoop edge
• Salty water
• Atlantic or Arctic
• Halibut habitat
• Cousteau's realm
• Hub's opposite
• Sinatra role
• Salt-water expanse
• Current setting
• What a 'swish' basketball shot doesn't touch
• Lens holder
• Whale habitat
• Nearly three quarters of the earth