What is to some extent raw, rough, till beaten into shape (7)
I believe the answer is:
wrought
'beaten into shape' is the definition.
'what is to some extent raw rough till' is the wordplay.
'what is to some extent' indicates a hidden word.
'WROUGHT' is hidden within 'raw rough till'.
(Other definitions for wrought that I've seen before include "Made" , "knocked into shape" , "Ornamented" , "Worked by hammering or beating" , "Shaped by hammering" .)