Orange sort of duck? (8)
I believe the answer is:
mandarin
I believe this clue is a double definition.
'orange' is the first definition.
(thesaurus)
'sort of duck?' is the second definition.
(Other definitions for mandarin that I've seen before include "Official language for all of China" , "Powerful official; fruit" , "top official" , "Tongue" , "High-ranking official or small orange" .)