Placates, mollifies (8)
I believe the answer is:
appeases
I believe this is a double definition.
'placates' is the first definition.
('appease' can be a synonym of 'placate')
'mollifies' is the second definition.
('appease' can be a synonym of 'mollify')
(Other definitions for appeases that I've seen before include "Placates" , "Mollifies by making concessions" , "Conciliates, mollifies" , "Calms" .)