Language translated by Belgian (7)
I believe the answer is:
bengali
'language' is the definition.
(I've seen this before)
'translated by belgian' is the wordplay.
'belgian' can be anagrammed to 'BENGALI'.
But, I am unsure how this is indicated.
Can you help me to learn more?
(Other definitions for bengali that I've seen before include "foreign language" , "Asian language" , "East Indian" , "Indic language" , "may be Indian" .)