Overlook or forgive (7)
I believe the answer is:
condone
I believe this clue is a double definition.
'overlook' is the first definition.
(I've seen this before)
'forgive' is the second definition.
(I know that condone is a more specific form of the action forgive)
(Other definitions for condone that I've seen before include "'Excuse, overlook (7)'" , "pardon" , "Overlook - forgive" , "Forgive, sanction" , "Turn a blind eye" .)