Jerseyman, for example, I defame (8)
I believe the answer is:
islander
'jerseyman' is the definition.
I can't judge whether this defines the answer.
'i defame' is the wordplay.
'defame' becomes 'slander' (synonyms).
'i'+'slander'='ISLANDER'
'for example' acts as a link.
(Other definitions for islander that I've seen before include "Eg, a Manxman" , "End rails (anag)" , "one from Jersey, perhaps" , "Rum person perhaps" , "One living away from mainland" .)