Is not given enough by Hungary state
I believe the answer is:
under-fed
'hungary state' is the definition.
The definition suggests an adjective which matches the answer.
'is not given enough by' is the wordplay.
'is not' becomes 'un' (I've seen this in other clues).
'given' becomes 'fed' ('feed' can be a synonym of 'give').
'enough' becomes 'der' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'by' is a charade indicator (letters next to each other).
'fed' put after 'der' is 'derfed'.
'un'+'derfed'='UNDER-FED'
Can you help me to learn more?
(Other definitions for under-fed that I've seen before include "Not having enough to eat" , "Too thin?" .)