Stevedore (6)
'stevedore' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for docker that I've seen before include "Stevedore" , "colleagues at the wharf?" , "One who loads ships" , "Cargo handler" , "But does one cut" .)
(Other definitions for wharfinger that I've seen before include "dock chief" , "Dock manager" , "man in charge of landing site" , "one who welcomes sailors" , "Docker" .)