Doesn't have both __ in the water

I believe the answer is:

oars

(Other definitions for oars that I've seen before include "Rowing blades" , "Busy bodies usually stick them in, also used in rowing" , "Implements to propel a boat" , "Poles to propel a boat" , "Al --, US gangster" .)

I've seen this clue in The Mirror.

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.