Future of the French midget (7)
I believe the answer is:
destiny
'future' is the definition.
(thesaurus)
'of the french midget' is the wordplay.
'of the french' becomes 'des'.
'midget' becomes 'tiny' ('tiny' can be a synonym of 'midget').
'des'+'tiny'='DESTINY'
(Other definitions for destiny that I've seen before include "Lot" , "The future as arranged by fate" , "must?" , "Fortune" , "Ultimate fate" .)