Range of jagged-peaked mountains (6)

I believe the answer is:

sierra

(Other definitions for sierra that I've seen before include "Long jagged mountain chain" , "Nato alphabet 'S'" , "Spanish word for a mountain" , "- Nevada, Spanish mountain range" , "A Spanish chain of mountains" .)

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.