Is French movement set apart? (8)

I believe the answer is:

estrange

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

'set apart?' is the definition.
(thesaurus)

'is french movement' is the wordplay.
'is french' becomes 'est' ('is' in French).
'movement' becomes 'range' (I can't explain this - if you can you should believe this answer much more).
'est'+'range'='ESTRANGE'

Can you help me to learn more?

(Other definitions for estrange that I've seen before include "split up?" , "Lose friendship" , "may break up" , "Antagonise using reagents" , "Alienate from friendship" .)

I've seen this clue in The Independent.

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.