What chess expert does? Works of art (12)

I believe the answer is:

masterpieces

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'what chess expert' is the definition.
I can't judge whether this definition defines the answer.

'does? works of art' is the wordplay.
'does?' becomes 'master' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'works of art' becomes 'pieces' (I've seen this in another clue).
'master'+'pieces'='MASTERPIECES'

Can you help me to learn more?

(Other definitions for masterpieces that I've seen before include "great works" , "Best work" .)

I've seen this clue in The Telegraph.

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