A city of China? (7)
I believe the answer is:
dresden
This clue is a double definition.
'a city' is the first definition.
(Dresden is an example)
'china?' is the second definition.
(a type of porcelain)
'of' acts as a link.
(Other definitions for dresden that I've seen before include "Fine china named after German city" , "'German city, noted for china (7)'" , "Dr needs to be in the German city" , "Industrial city" , "German city known for its china" .)