Epic creator forced to return the favour (11)
I believe the answer is:
reciprocate
'return the favour' is the definition.
'reciprocate' can be an answer for 'return' (I've seen this before). I am not sure about the 'the favour' bit.
'epic creator forced' is the wordplay.
'forced' is an anagram indicator.
'epic'+'creator'='epiccreator'
'epiccreator' is an anagram of 'RECIPROCATE'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for reciprocate that I've seen before include "Return (love/affection)" , "Respond" , "Do something in return" , "Interchange" , "make fair return" .)