Kind, the French folk in court (7)
I believe the answer is:
clement
'kind' is the definition.
(thesaurus)
'the french folk in court' is the wordplay.
'the french' becomes 'le'.
'folk' becomes 'men' (I've seen this in other clues).
'in' means one lot of letters goes inside another.
'court' becomes 'ct'.
'le'+'men'='lemen'
'lemen' going into 'ct' is 'CLEMENT'.
(Other definitions for clement that I've seen before include "(Of weather) mild, lenient" , "With a harmed reputation" , "Merciful; various Popes" , "Kindly (applied to weather)" , "Several popes" .)