Become less intense or severe (7)
I believe the answer is:
subside
(Other definitions for subside that I've seen before include "(Of floods) go down" , "Wane" , "Abate" , "Collapse" , "Diminish" .)
I believe the answer is:
subside
(Other definitions for subside that I've seen before include "(Of floods) go down" , "Wane" , "Abate" , "Collapse" , "Diminish" .)