Asian state broadcast match lacking in colour (6)
I believe the answer is:
taiwan
'asian state' is the definition.
(country in Asia)
'broadcast match lacking in colour' is the wordplay.
I cannot quite see how this works, but
'colour' could be 'wan' (I have seen 'Lacking colour ' mean 'wan' so perhaps 'colour' could also mean 'wan') and 'wan' is found within the answer.
The remaining letters 'tai' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for taiwan that I've seen before include "Disputed island off china, used to be Formosa" , "Non-mainland China" , "Large island off China" , "SE Asian island" , "Island country, formally called Formosa" .)