Purging of emotions has racist converted (9)
I believe the answer is:
catharsis
'purging of emotions' is the definition.
'has racist converted' is the wordplay.
'converted' indicates an anagram.
'has'+'racist'='hasracist'
'hasracist' is an anagram of 'CATHARSIS'.
(Other definitions for catharsis that I've seen before include "cleansing'" , "Release of feelings" , "The release of pent-up emotions" , "emotional event" , "purging process" .)