An erotic novel produces feedback (8)
I believe the answer is:
reaction
'feedback' is the definition.
(I've seen this before)
'an erotic novel' is the wordplay.
'novel' indicates anagramming the letters.
'an'+'erotic'='anerotic'
'anerotic' anagrammed gives 'REACTION'.
'produces' is the link.
(Other definitions for reaction that I've seen before include "Answer" , "counter-revolution" , "In mechanics, every action has an equal and opposite one" , "Response to stimulus from creation" , "Side-effect from drug" .)