Presidential pardon (7)
I believe the answer is:
amnesty
'presidential pardon' 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 "General pardon - international charity" , "International organisation concerned with human rights" , "Period of forgiveness for infractions" , "When law is suspended" , "suspension of law" .)