Writer talked about devil (7)
I believe the answer is:
dickens
'devil' is the definition.
(I know that devil can be written as dickens)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for dickens that I've seen before include "British author; the Devil" , "'Hard Times' 17" , "Devil of a novelist!" , "A successful author" , "Author of Our Mutual Friend, d. 1870" .)