Parisian in America entering the rave (7)
I believe the answer is:
enthuse
'rave' is the definition.
(I've seen this before)
'parisian in america entering the' is the wordplay.
'parisian in' becomes 'en' ('in' in French).
'america' becomes 'US' (United States).
'entering' indicates putting letters inside.
'us' going within 'the' is 'thuse'.
'en'+'thuse'='ENTHUSE'
(Other definitions for enthuse that I've seen before include "Show feeling of eager liking and approval" , "Show eager interest and liking" , "Make keen" , "Show intense approval" , "Express eager enjoyment, interest or approval" .)