Brings essential aid back from this country (5)
I believe the answer is:
india
'this country' is the definition.
(India is an example)
'brings essential aid back from' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'aid' is 'dia' which is present in the answer.
'from' could be 'in' (I've seen this in other clues) and 'in' is present in the answer.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for india that I've seen before include "Subcontinent of Asia south of Himalayas" , "Country of the Ganges" , "vast country" , "Cricket team" , "I identified on radio" .)