Commoner (4)
'commoner' is the definition.
(I know that pleb is a type of commoner)
This is all the clue.
(Other definitions for pleb that I've seen before include "Commoner" , "Term used for a member of the lower classes" , "Uncultivated type" , "Boor" , "Person of vulgar tastes (colloq.)" .)
'commoner' is the definition.
(I know that plebeian is a type of commoner)
This is the entire clue.
(Other definitions for plebeian that I've seen before include "Non-U?" , "Of the lower social classes, or uncultured" , "Vulgar" , "(Roman) commoner" , "Lacking in refinement" .)