Director wasted money due to this person (8)
I believe the answer is:
creditor
'money due to this person' is the definition.
'creditor' can be an answer for 'person' (creditor is a kind of person). I'm unsure of the remainder of the definition.
'director wasted' is the wordplay.
'wasted' is an anagram indicator.
'director' is an anagram of 'CREDITOR'.
Can you help me to learn more?
(Other definitions for creditor that I've seen before include "The one to whom debt is due" , "Person to whom money isowed" , "to whom something is due" , "Cried rot (anag.)" , "Moneylender" .)