Conciliation (11)
I believe the answer is:
appeasement
'conciliation' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for appeasement that I've seen before include "Action of placating by making concessions" , "Offer of concessions" , "Giving in to demands to placate someone" , "Action of placating somebody" , "Act of placating by making concessions" .)