Feudal fellow (4)
I believe the answer is:
serf
'feudal fellow' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for serf that I've seen before include "Person required to work for a lord" , "'In the Middle Ages, a person owned by a feudal lord (4)'" , "Servant, vassal" , "Person bound to the land and owned by a feudal lord" , "Medieval villein" .)