Appease, pacify (7)
I believe the answer is:
placate
This clue is a double definition.
'appease' is the first definition.
(synonyms)
'pacify' is the second definition.
(I know that pacify can be written as placate)
(Other definitions for placate that I've seen before include "Make calm, conciliate" , "Pale cat could pacify" , "Calm, pacify, appease" , "'Pacify, appease (7)'" , "Mollify, appease" .)