Family of a kind (3)
I believe the answer is:
kin
I believe this clue is a double definition.
'family' is the first definition.
(synonyms)
'a kind' is the second definition.
(thesaurus)
'of' acts as a link.
(Other definitions for kin that I've seen before include "Relatives, family" , "Connections; family" , "Relations, go with kith" , "Family members" , "One's family/relations" .)