Duck and orange (8)
I believe the answer is:
mandarin
I believe this is a double definition.
'duck' is the first definition.
(mandarin duck is a kind of duck)
'orange' is the second definition.
(thesaurus)
'and' is the link.
(Other definitions for mandarin that I've seen before include "Chinese language; fruit" , "High official in imperial China and a fruit" , "Language formerly used by educated Chinese, or a kind of orange" , "Small orange-like fruit (from China?)" , "Small orange or Chinese language" .)