Resident of Italy's capital (5)
I believe the answer is:
roman
'resident of italy's capital' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for roman that I've seen before include "eg Julius Caesar" , "Dominant political power of first centuries AD" , "Denizen of Italian capital" , "eg Nero" , "From Italy's capital" .)