... and whatever else "hero" wrote is for pulping (2,9)

'hero wrote is for pulping' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'and whatever else' is the wordplay.
I cannot quite see how this works, but
'else' could be 'otherwise' ('otherwise' can be a synonym of 'else') and 'otherwise' is present in the answer.
The remaining letters 'or' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?