Left harbour bearing drink (4)
I believe the answer is:
port
This clue is a quadruple definition!!
'left' is the first definition.
(left side of a ship - opposite of starboard)
'harbour' is the second definition.
(I've seen this before)
'bearing' is the third definition.
(thesaurus)
'drink' is the fourth definition.
(port is a kind of drink)
(Other definitions for port that I've seen before include "Left, opening, wine" , "Sweet dark red fortified wine taken after meal" , "E.g. five [SWANSEA]" , "Isle in Dorset" , "Wine - left - harbour" .)