Target of racism regularly ignored (3)
I believe the answer is:
aim
'target' is the definition.
('aim' can be a synonym of 'target')
'racism regularly ignored' is the wordplay.
'regularly ignored' means one should take alternating letters.
The alternate letters of 'racism' are 'AIM'.
'of' is the link.
(Other definitions for aim that I've seen before include "End" , "Purpose, intention" , "Aspire" , "Train" , "Purpose in directing the rifle" .)