Forgiveness: what's that? (6)
I believe the answer is:
pardon
'forgiveness' is the definition.
(synonyms)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for pardon that I've seen before include "Forgive or excuse (an offence)" , "Grant forgiveness" , "Forgiveness - I beg yours" , "Excuse me, kindly overlook" , "Forgive (an error)" .)