Mandarin, endless stream, a curate translated (10)
I believe the answer is:
bureaucrat
'mandarin' is the definition.
(I've seen this before)
'endless stream a curate translated' is the wordplay.
'endless' means to remove the last letter.
'stream' becomes 'burn' (a burn is a small stream).
'translated' indicates an anagram.
'burn' with its last letter removed is 'bur'.
'a'+'curate'='acurate'
'acurate' is an anagram of 'eaucrat'.
'bur'+'eaucrat'='BUREAUCRAT'
(Other definitions for bureaucrat that I've seen before include "Government official" , "Mandarin" , "Administrator" .)