Military cap with a flat round top and a visor (4)

I believe the answer is:

kepi

(Other definitions for kepi that I've seen before include "French military cap" , "French army cap" , "French military hat" , "French military headgear" , "Military cap with circular top" .)

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.