Underprivileged (4)
I believe the answer is:
poor
'underprivileged' is the definition.
(associated in meaning)
This is all the clue.
(Other definitions for poor that I've seen before include "Destitute" , "Not good, wealthy" , "Of inferior quality or means" , "Needy; meagre" , "Lacking means; paltry" .)