Inherent corruption at work in grain silo (8,3)
I believe the answer is:
original sin
'inherent corruption' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'work in grain silo' is the wordplay.
'work' is an anagram indicator.
'in'+'grain'+'silo'='ingrainsilo'
'ingrainsilo' is an anagram of 'ORIGINAL SIN'.
'at' acts as a link.
Can you help me to learn more?
(Other definitions for original sin that I've seen before include "Man's innate offence" , "Tendency to evil inherited by all descendants of Adam?" , "eating fruit in the first place" , "Tendency to go astray" , "made in the garden?" .)