In America, generally, it's barred (4)
I believe the answer is:
cage
'in america generally it's barred' is the definition.
I can't judge whether this defines the answer.
'in america generally it's barred' is the wordplay.
'in' says the answer is hidden in the clue.
'CAGE' is hidden within 'america generally barred'.
Can you help me to learn more?
(Other definitions for cage that I've seen before include "Bird's prison" , "Eg, aviary" , "Barred enclosure for animals" , "Hutch" , "Tffhe goal in ice hockey" .)