North-east editor that is right is more poverty-stricken (7)
I believe the answer is:
needier
'more poverty-stricken' is the definition.
('needy' can be a synonym of 'poverty-stricken')
'north-east editor that is right' is the wordplay.
'north east' becomes 'ne'.
'editor' becomes 'ed' (abbreviation).
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'right' becomes 'r' (abbreviation).
'ne'+'ed'+'ie'+'r'='NEEDIER'
'is' acts as a link.
(Other definitions for needier that I've seen before include "Wanting more" , "Those with fewer resources are" , "more impoverished" , "Less well off" , "More disadvantaged" .)