Nearest broadcast is from China? (7)
I believe the answer is:
eastern
'is from china?' is the definition.
(China is a country of the east)
'nearest broadcast' is the wordplay.
'broadcast' is an anagram indicator.
'nearest' with letters rearranged gives 'EASTERN'.
(Other definitions for eastern that I've seen before include "See 11" , "towards daybreak?" , "Possibly Japanese" , "From Japan, say" , "Facing away from the west" .)