Strip consists of a French gown (7)
I believe the answer is:
undress
'strip' is the definition.
(I know that strip can be written as undress)
'a french gown' is the wordplay.
'a french' becomes 'un' ('a' in French).
'gown' becomes 'dress' (gown is a kind of dress).
'un'+'dress'='UNDRESS'
'consists of' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for undress that I've seen before include "Divest of clothes" , "Nudity" , "Take off clothing, strip" , "Take one's clothes off" , "Disrobe - uniform for ordinary occasions" .)