Put on leg pad at the end (6)
I believe the answer is:
staged
'put on' is the definition.
(both can mean fake or affected)
'leg pad at the end' is the wordplay.
'leg' becomes 'stage' (synonyms).
'at the end' says to take the final letters.
The last letter of 'pad' is 'd'.
'stage'+'d'='STAGED'
(Other definitions for staged that I've seen before include "Put on as theatre would" , "Presented a play" , "(Of play/opera) mounted" , "Performed or produced play" , "Put on play or other performance" .)