Left wine (4)
I believe the answer is:
port
This clue is a double definition.
'left' is the first definition.
(left side of a ship - opposite of starboard)
'wine' is the second definition.
(port is a kind of wine)
(Other definitions for port that I've seen before include "where one would expect water" , "Wine - left - harbour" , "Wine left at sea ?" , "Grimsby, perhaps" , "Harbour; drink; opening" .)