In Uttar Pradesh, indigenous language (5)
I believe the answer is:
hindi
'language' is the definition.
(Hindi is an example)
'in uttar pradesh indigenous' is the wordplay.
'in' says the answer is hidden in the clue.
'HINDI' is hidden within 'uttar pradesh indigenous'.
(Other definitions for hindi that I've seen before include "Indic language" , "One of India's official languages" , "Language derived from Sanskrit" , "tongue" , "It's spoken abroad" .)