Make fun of Eddie Redmayne's debut adaptation (6)
I believe the answer is:
deride
'make fun of' is the definition.
(I've seen this in another clue)
'eddie redmayne's debut adaptation' is the wordplay.
'debut' says to take the initial letters.
'adaptation' indicates an anagram.
The initial letter of 'redmaynes' is 'r'.
'eddie'+'r'='eddier'
'eddier' with letters rearranged gives 'DERIDE'.
(Other definitions for deride that I've seen before include "'Mock, sneer at (6)'" , "Knock" , "Ridicule, laugh at" , "Mock, scorn" , "Speak of with contempt" .)