Hairstyle named for its longevity (4)

I believe the answer is:

perm

(Other definitions for perm that I've seen before include "Old-fashioned haircut" , "make waves" , "Hair style (abbr)" , "To curl (hair)" , "Hair setting method" .)

I've seen this clue in the USA Today.

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.