Become less good (6)
I believe the answer is:
worsen
(Other definitions for worsen that I've seen before include "Become less well" , "Become more inferior" , "Aggravate" , "go downhill" , "Go to pot" .)
I believe the answer is:
worsen
(Other definitions for worsen that I've seen before include "Become less well" , "Become more inferior" , "Aggravate" , "go downhill" , "Go to pot" .)