Chinese dynasty in East Anglia (4)
I believe the answer is:
tang
'chinese dynasty' is the definition.
(I've seen this before)
'in east anglia' is the wordplay.
'in' says the answer is hidden in the clue.
'TANG' can be found hidden inside 'east anglia'.
(Other definitions for tang that I've seen before include "Piquancy - Chinese dynasty" , "Bitter aftertaste - prong" , "Strong flavour/smell" , "The biting flavour of seaweed" , "Dynasty's" .)