Author comes by computer in cocaine hub (8)

'cocaine hub' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'author comes by computer in' is the wordplay.
I cannot really understand how this works, but
'author' could be 'me' (the author of the crossword) and 'me' is located in the answer.
'in' is present in the answer.
The remaining letters 'dell' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?