Repugnant misrepresentation in article (5)
I believe the answer is:
alien
'repugnant' is the definition.
(I've seen this before)
'misrepresentation in article' is the wordplay.
'misrepresentation' becomes 'lie' (I've seen this in another clue).
'in' indicates putting letters inside.
'article' becomes 'an' (indefinite article).
'lie' put inside 'an' is 'ALIEN'.
(Other definitions for alien that I've seen before include "Belonging to a foreign country" , "coming from overseas" , "24a [ESTRANGE]" , "Unfamiliar; foreign" , "Stranger" .)