I say I'm not affected by hatred (9)
I believe the answer is:
animosity
'hatred' is the definition.
(animosity is a kind of hatred)
'i say i'm not affected' is the wordplay.
'affected' is an anagram indicator.
'i'+'say'+'im'+'not'='isayimnot'
'isayimnot' is an anagram of 'ANIMOSITY'.
'by' acts as a link.
(Other definitions for animosity that I've seen before include "A spirit of hostility, enmity" , "Feeling of ill will and hostility" , "Hate" , "A spirit of hostility, rancour" , "Hostility concealed by sanity - moi?" .)