Extremely clever newspaper man? You owe him (8)
I believe the answer is:
creditor
'you owe him' is the definition.
(a creditor is someone you owe money)
'extremely clever newspaper man?' is the wordplay.
'extremely' says to hollow out the word (remove centre letters) (only the extremes of the word are used).
'newspaper man?' becomes 'editor' (person in charge of a newspaper).
'clever' with its middle removed is 'cr'.
'cr'+'editor'='CREDITOR'
(Other definitions for creditor that I've seen before include "Cried rot (anag.)" , "Moneylender" , "one to whom money is due" , "recipient of money" , "Director (anag)" .)