"Black hole of the ocean" (4)

I believe the answer is:

eddy

(Other definitions for eddy that I've seen before include "Fellow" , "(Of fluid) circle round" , "Christian Scientist" , "Swirling current" , "Turner at sea" .)

I've seen this clue in the Universal.

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.