Shift ends in Fleetwood for the docks workers (5)
I believe the answer is:
dress
'shift' is the definition.
(shift can mean a dress)
'ends in fleetwood for the docks workers' is the wordplay.
'ends in' says to take the final letters.
The last letters of 'fleetwood for the docks workers' are 'DRESS'.
(Other definitions for dress that I've seen before include "clean > bandage" , "To prepare" , "Gown" , "One-piece garment" , "Apparel" .)