Language of Bangladesh (7)
I believe the answer is:
bengali
'language of bangladesh' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bengali that I've seen before include "Language of Bangladesh and northeast India" , "Asian character" , "Ethnic group and language of NE Indian subcontinent" , "East Indian" , "From Dhaka or Kolkata, perhaps" .)