Pardoning for handing over (9)
I believe the answer is:
forgiving
'pardoning' is the definition.
(I've seen this before)
'for handing over' is the wordplay.
'handing over' becomes 'giving' (I've seen this before).
'for'+'giving'='FORGIVING'
(Other definitions for forgiving that I've seen before include "Ready to excuse" , "Pardoning" , "Lenient" , "Excusing" , "Giving pardon" .)