Criticise Prospero as tiresome part (5)
I believe the answer is:
roast
'criticise' is the definition.
(I've seen this in another clue)
'prospero as tiresome part' is the wordplay.
'part' says the answer is hidden in the clue.
'ROAST' is hidden within 'prospero as tiresome'.
(Other definitions for roast that I've seen before include "Berate - cook" , "Pull to pieces" , "Swelter" , "Tear to pieces" , "Cook (meat) in oven" .)