Family
'family' is the definition.
(clan can mean a large family)
This is all the clue.
(Other definitions for clan that I've seen before include "Macdonald, perhaps" , "People related by blood and marriage" , "Kin group" , "Campbells, say?" , "Scots family group" .)
(Other definitions for feud that I've seen before include "Piece of land once" , "Squabble" , "Private war" , "State of prolonged mutual hostility" , "Quarrel; spat" .)
'family' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tree that I've seen before include "Large growth" , "Genealogy chart" , "Oak, say" , "Tall, woody plant" , "Big plant" .)
'family' is the definition.
(I know that family can be written as kin)
This is all the clue.
(Other definitions for kin that I've seen before include "A person's relatives, goes with kith" , "Relatives, family" , "Flesh and blood" , "Family and relations" , "Group of relations" .)
'family' is the definition.
(I know that family can be written as kinfolk)
This is the entire clue.
(Other definitions for kinfolk that I've seen before include "Family" , "Blood relatives" , "Blood relations" .)
'family' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for genre that I've seen before include "Style of work" , "Green (anag)" , "Category of literature" , "Type or style, of art" , "class" .)
'family' is the definition.
(both can mean relating to one's family)
This is the entire clue.
(Other definitions for tribal that I've seen before include "Of a traditional social group" , "Relating to people related by blood" , "Like certain social groups" , "concerning clan" , "Of a group of people related by blood" .)