An American in Paris (6)

I believe the answer is:

apache

I'm a little stuck... Click here to teach me more about this clue!

'an american' is the definition.
(I've seen this before)

I cannot understand how the remainder of the clue works.

(Other definitions for apache that I've seen before include "US native" , "American speech" , "Geronimo was one" , "Fierce Indian of American SW, or Paris ruffian" , "language" .)

I've seen this clue in the Evening Standard.

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.