Grown abroad? Not correct (5)
I believe the answer is:
wrong
'not correct' is the definition.
('wrong' is the opposite to 'correct')
'grown abroad?' is the wordplay.
'abroad?' is an anagram indicator (I've seen 'abroad' mean this).
'grown' with letters rearranged gives 'WRONG'.
(Other definitions for wrong that I've seen before include "Inappropriate" , "bad" , "Not correct" , "Injury - incorrect" , "Failing to come right" .)