Purge has racist components (9)
I believe the answer is:
catharsis
'purge' is the definition.
(catharsis is a kind of purge)
'has racist components' is the wordplay.
'components' is an anagram indicator.
'has'+'racist'='hasracist'
'hasracist' anagrammed gives 'CATHARSIS'.
(Other definitions for catharsis that I've seen before include "cleansing'" , "Emotional release" , "emotional relief" , "Purification of the emotions" , "The release of pent-up emotions" .)