A different one from America, not here (7)
I believe the answer is:
another
'a different one' is the definition.
(I've seen this before)
'from america not here' is the wordplay.
'from' says the answer is hidden in the clue.
'ANOTHER' is hidden in the letters of 'america not here'.
(Other definitions for another that I've seen before include "No heart (anag.)" , "A different one" , "encore?" , "Someone else" , "Player or person not yet named or selected" .)