Corrupt director is owed money (8)
I believe the answer is:
creditor
'owed money' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'corrupt director' is the wordplay.
'corrupt' indicates an anagram.
'director' is an anagram of 'CREDITOR'.
'is' is the link.
Can you help me to learn more?
(Other definitions for creditor that I've seen before include "The one to whom debt is due" , "Cried rot (anag.)" , "One who's owed money" , "one to whom money is due" , "to whom something is due" .)