Mountain range in Idaho (8)

I believe the answer is:

sawtooth

(Other definitions for sawtooth that I've seen before include "A jagged edge" , "With jagged outline" , "Show a tot (anag.)" , "(Of waveform) showing linear rise and fall" , "serrated" .)

I've seen this clue in The Wall Street Journal.

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.