Dock worker to deserve getting fired (9)
I believe the answer is:
stevedore
'dock worker' is the definition.
(synonyms)
'to deserve getting fired' is the wordplay.
'getting' is a charade indicator (letters next to each other).
'fired' indicates anagramming the letters (I've seen this in other clues).
'to'+'deserve'='todeserve'
'todeserve' is an anagram of 'STEVEDORE'.
(Other definitions for stevedore that I've seen before include "Worker who loads and unloads ships" , "Dock-worker loads and unloads ships" , "Docker" , "Unloader of shipping vessels" , "he'll have loads on board" .)