Narrow-minded but enthusiastic about the French rave (10)
I believe the answer is:
intolerant
'narrow-minded' is the definition.
('intolerant' can be similar in meaning to 'narrow-minded')
'enthusiastic about the french rave' is the wordplay.
'enthusiastic about' becomes 'into' (I've seen this before).
'the french' becomes 'le'.
'rave' becomes 'rant' ('rant' can be a synonym of 'rave').
'into'+'le'+'rant'='INTOLERANT'
'but' acts as a link.
(Other definitions for intolerant that I've seen before include "Hating" , "Bigoted" , "Lacking respect for the beliefs of others" , "Impatient" , "illiberal" .)