Possible Clues:

• Compete like Simone Manuel
• Survive in crowdless Wimbledon?
• Group of women wearing two costume sizes for pool activity
• First leg of a triathlon
• Compete in a Summer Olympics event
• ''At ...-Two-Birds'' (Flann O'Brien)
• Join your neighbors in their pool
• Move like a shark
• Triathlon opener
• For this you need 23 down to go overseas