Place to go on a ship
I believe the answer is:
head
'place to go on a ship' is the definition.
(term for a toilet on a ship)
This is the entire clue.
(Other definitions for head that I've seen before include "Noggin" , "Beer foam; front" , "River source; promontory" , "School boss" , "Be in charge of; (come to) crisis" .)