Rome trip arranged for a trader (8)
I believe the answer is:
importer
'a trader' is the definition.
(I've seen this before)
'rome trip arranged' is the wordplay.
'arranged' is an anagram indicator.
'rome'+'trip'='rometrip'
'rometrip' is an anagram of 'IMPORTER'.
'for' is the link.
(Other definitions for importer that I've seen before include "One bringing in goods to country" , "Foreign dealer" , "One who brings in" , "A trader in foreign goods" , "Businessperson" .)