Mountainside watercourse (5)

I believe the answer is:

gully

(Other definitions for gully that I've seen before include "Ravine cut by running water" , "Water-course" , "In field, position" , "Cricket fielding position" , "Cricket position; ravine" .)

I've seen this clue in The Sun.

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.