Ship's crew in sea cut and run (7)
I believe the answer is:
steamer
'ship's' is the definition.
(a steam ship)
'crew in sea cut and run' is the wordplay.
'crew' becomes 'team' (both can mean a group of colleagues).
'in' indicates putting letters inside.
'cut' means to remove the last letter.
'and' says to put letters next to each other.
'run' becomes 'r' (cricket abbreviation).
'sea' with its last letter taken away is 'se'.
'team' placed into 'se' is 'steame'.
'steame'+'r'='STEAMER'
(Other definitions for steamer that I've seen before include "housed in galley" , "Vessel housing galley" , "Cooking apparatus" , "Ship; saucepan" , "Boat, cooking vessel" .)