"Bulky" mountain range portion (6)

I believe the answer is:

massif

(Other definitions for massif that I've seen before include "High points" , "Block of mountains" , "Extensive raised area" , "Mountain heights in compact group" , "large amount of rock" .)

I've seen this clue in the Newsday.

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.