Nudity is a source of discord (8)
I believe the answer is:
disunity
'discord' is the definition.
(thesaurus)
'nudity is a source of' is the wordplay.
'a source of' indicates anagramming the letters.
'nudity'+'is'='nudityis'
'nudityis' with letters rearranged gives 'DISUNITY'.
(Other definitions for disunity that I've seen before include "Lack of agreement" , "Lack of solidarity" , "Lack of oneness" , "conflict" .)