A port stormy seas do reveal (6)
I believe the answer is:
odessa
'a port' is the definition.
(Odessa is a Ukrainian port)
'seas do reveal' is the wordplay.
'reveal' indicates an anagram.
'seas'+'do'='seasdo'
'seasdo' anagrammed gives 'ODESSA'.
'stormy' is the link.
This may not be correct. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for odessa that I've seen before include "Port city on the Black Sea" , "Ukrainian Black Sea port" , "Ukrainian location" , "Seaport" , "Port city of Ukraine" .)