Celebrated Chinese dynasty (4)
I believe the answer is:
sung
This clue is a double definition.
'celebrated' is the first definition.
(as opposed to 'unsung')
'chinese dynasty' is the second definition.
(I've seen this before)
(Other definitions for sung that I've seen before include "Performed vocally; Chinese dynasty" , "Chinese dynasty; uttered melodiously" , "Celebrated dynasty" .)