Crossword Genius

Swimmer sans trunks or bikini (6-6)

Ross

I believe the answer is:

skinny-dipper

(Another definition for skinny-dipper that I've seen is " Bare breaststroker?".)

I've seen this clue in The Guardian.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.