Mountain lake (4)

I believe the answer is:

tarn

'mountain lake' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for tarn that I've seen before include "High water" , "Small mountain lake" , "Mountain pool: French department" , "Scottish mountain lake" .)

I've seen this clue in The Mirror, The New York Times, The Times, The Telegraph, The Independent, the Evening Standard and 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.