Vessel with an officer and any other sailor (8)
I believe the answer is:
shipmate
'any other sailor' is the definition.
'shipmate' can be an answer for 'sailor' (I have seen 'Fellow sailor' mean 'shipmate' so perhaps 'sailor' could also mean 'shipmate'). I'm not sure about the 'any other' bit.
'vessel with an officer' is the wordplay.
'vessel' becomes 'ship' (ship is a kind of vessel).
'with' means one lot of letters go next to another.
'an officer' becomes 'mate' (mate is a kind of officer).
'ship'+'mate'='SHIPMATE'
'and' is the link.
Can you help me to learn more?
(Other definitions for shipmate that I've seen before include "Fellow crew member" , "Colleague on board" , "Fellow seaman" , "Fellow crewman" , "Fellow sailor" .)