Servile dependant (6)
I believe the answer is:
minion
'servile dependant' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for minion that I've seen before include "Servile assistant" , "Servile favourite" , "Fawning servant" , "Dependant, underling" , "Lackey or subordinate assistant" .)