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 am unsure 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" .)