Exclude one from a foreign port (4)
I believe the answer is:
bari
'a foreign port' is the definition.
'bari' can be an answer for 'port' (I've seen this before). I'm not certain of the 'a foreign' bit.
'exclude one' is the wordplay.
'exclude' becomes 'bar' (synonyms).
'one' becomes 'I' (Roman numeral).
'bar'+'i'='BARI'
'from' is the link.
Can you help me to learn more?
(Other definitions for bari that I've seen before include "Adriatic port" , "Adriatic resort" , "Adriatic seaport" .)