Pacify; relieve (6)
I believe the answer is:
soothe
This clue is a double definition.
'pacify' is the first definition.
(I know that pacify is a more specific form of the action calm)
'relieve' is the second definition.
(I know that soothe is a more specific form of the action relieve)
(Other definitions for soothe that I've seen before include "'Console, comfort (6)'" , "Gently calm" , "Calm; relieve pain" , "Cause to feel better" , "Console, pacify" .)