Rock formation that appears above the surface of the surrounding land (7)

I believe the answer is:

outcrop

(Other definitions for outcrop that I've seen before include "Protruding or projecting rock" , "Surface eruption of rock" , "Rocks appearing at the surface" , "Rocky feature" , "Not suitable" .)

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.