Ship's officer (6)

'ship's officer' is the definition.
(purser is a kind of ship's officer)
This is the entire clue.
(Other definitions for purser that I've seen before include "office on ship" , "Naval paymaster" , "Ship's officer looking after the passengers" , "Ship's officer who keeps accounts and looks after passengers" , "Ship's officer responsible for the accounts etc" .)
'ship's officer' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for boatswain that I've seen before include "I was not AB (anag) - naval warrant officer" , "4 [TEMPEST] character" , "sailor" , "Officer on board" , "Warrant officer in charge of a ship's crew" .)