Feudal peasant (4)
I believe the answer is:
serf
'feudal peasant' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for serf that I've seen before include "Medieval person bound to a feudal lord" , "Tied labourer" , "Subservient labourer" , "Feudal subject" , "Tied estate worker" .)