Lessened (6)
'lessened' is the definition.
('decrease' can be a synonym of 'lessen')
This is all the clue.
(Other definitions for decreased that I've seen before include "Became smaller or fewer" , "Dropped" , "contracted" .)
'lessened' is the definition.
(abating is a kind of lessening)
This is all the clue.
(Other definitions for abated that I've seen before include "Subsided or decreased like storm" , "Slackened off, died back" , "Decreased, receded" , "grew less" , "Lowered" .)
'lessened' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for eased that I've seen before include "Made less hard" , "rested" , "Relaxed" , "Given relief" , "Alleviated" .)