Title of the French game (7)
I believe the answer is:
duchess
'title' is the definition.
(I've seen this before)
'of the french game' is the wordplay.
'of the french' becomes 'du' ('of the' in French).
'game' becomes 'chess' (chess is a kind of game).
'du'+'chess'='DUCHESS'
(Other definitions for duchess that I've seen before include "Titled lady" , "Duke's wife" , "title" , "Titled female" , "Great lady" .)