Feudal worker
I believe the answer is:
serf
'feudal worker' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for serf that I've seen before include "Person bound to the land and owned by a feudal lord" , "Feudal subject" , "(In the Middle Ages) someone bound to the land" , "Thrall" , "Slave" .)