Crew members from Portsmouth and Southampton (5)
I believe the answer is:
hands
'crew members' is the definition.
(I've seen this in another clue)
'from portsmouth and southampton' is the wordplay.
'from' indicates a hidden word.
'HANDS' is hidden in the letters of '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" .)