Related Clues:

• Competitor in pool runs down in motor
• One plunges head first into water
• One in a wet suit
• Deep-sea explorer
• Pool athlete who aptly crosses the first 5 letters of 30-Down
• Wu Minxia with five Olympic gold medals, e.g
• Olympian Melissa Wu, e.g
• One going under water
• Reviled footballer may be Olympic medallist
• Plunger
• Fu Mingxia, for one
• One working under pressure
• Flamboyant pool user
• Masked explorer
• One studying coral composition, say