Fetch editor after retired informer is identified as victim (8)
I believe the answer is:
targeted
'identified as victim' is the definition.
(targeted for crime)
'fetch editor after retired informer' is the wordplay.
'fetch' becomes 'get' (synonyms).
'editor' becomes 'ed' (abbreviation).
'after' is a charade indicator (letters next to each other).
'retired' says the letters should be written in reverse.
'informer' becomes 'rat' (synonyms).
'rat' backwards is 'tar'.
'get'+'ed'='geted'
'geted' after 'tar' is 'TARGETED'.
'is' is the link.
(Other definitions for targeted that I've seen before include "Selected as an object to aim at" , "Took aim at (8)" , "Aimed at, or set as objective" .)