Family dispute lead by Clement? (4)
I believe the answer is:
kind
'clement?' is the definition.
(thesaurus)
'family dispute lead by' is the wordplay.
'family' becomes 'kin' ('kin' can be a synonym of 'family'**).
'lead' suggests taking the first letters.
'by' says to put letters next to each other.
The first letter of 'dispute' is 'd'.
'kin'+'d'='KIND'
(Other definitions for kind that I've seen before include "Thoughtful; type" , "Tender-hearted" , "Sort of compassionate" , "Type; helpful" , "Loving; class" .)