Japanese-American
I believe the answer is:
nisei
'japanese-american' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nisei that I've seen before include "Second-generation immigrant" , "One born in the USA of parents who emigrated from Japan" , "Japanese Canadian/American" , "American born of Japanese immigrant parents" , "One born in the US of Japanese emigre parents" .)