Wish of French father (6)
I believe the answer is:
desire
'wish' is the definition.
(desiring is a kind of wishing)
'of french father' is the wordplay.
'of french' becomes 'de'.
'father' becomes 'sire' ('sire' can be a synonym of 'father').
'de'+'sire'='DESIRE'
(Other definitions for desire that I've seen before include "Wish for strongly" , "Reside (anag.)" , "Reside in longing" , "Strong need" , "Famous play: ''A Streetcar Named ......''" .)