Crew members from Portsmouth and Southampton (5)
I believe the answer is:
hands
'crew members' is the definition.
(I've seen this before)
'from portsmouth and southampton' is the wordplay.
'from' indicates the answer is hidden within the clue.
'HANDS' can be found hidden inside 'portsmouth and southampton'.
(Other definitions for hands that I've seen before include "Cards given out in deal" , "Crew members" , "Passes" , "Workmen" , "Units for measuring horse's height" .)