Socially or economically deprived (13)
I believe the answer is:
disadvantaged
'socially or economically deprived' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for disadvantaged that I've seen before include "Handicapped" , "Put in an unfavourable position" , "Socially or economically deprived" , "underprivileged" , "In deprived circumstances" .)