Related Clues:

• Sea swirls
• Moon-related phenomena
• Vedder and Van Halen
• Sets off
• Zephyrs, e.g.
• Vortices
• Flows in a circular current
• Sand castle destroyers
• Disruptive currents
• Unpredictable currents
• Astronomical study
• Swirling currents
• Surfer's concerns
• Helps through a tough time, with "over"
• Short circuit sights