Put on stone, advanced in years (6)
I believe the answer is:
staged
'put on' is the definition.
(both can mean fake or affected)
'stone advanced in years' is the wordplay.
'stone' becomes 'st'.
'advanced in years' becomes 'aged' (I've seen this before).
'st'+'aged'='STAGED'
(Other definitions for staged that I've seen before include "Put on play or other performance" , "Put on (as show)" , "Performed or produced play" , "Mounted (a play)" , "(Of play/opera) mounted" .)