Official forgiveness (7)
I believe the answer is:
amnesty
'official forgiveness' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for amnesty that I've seen before include "Period of forgiveness for infractions" , "Men stay (anag.)" , "Official pardon for political offences" , "A general political pardon, perhaps for tax defaulters" , "act of forgiveness" .)