Allayed (5)
I believe the answer is:
eased
'allayed' is the definition.
('ease' can be a synonym of 'allay')
This is the entire clue.
(Other definitions for eased that I've seen before include "Made less difficult, relieved from anxiety" , "Relieved, mitigated" , "rested" , "Helped" , "Slackened off" .)