Acute folly (6)
I believe the answer is:
lunacy
(Other definitions for lunacy that I've seen before include "Extreme folly, insanity" , "Madness, insanity" , "Foolishness" , "Moon madness" , "idiotic act" .)
I believe the answer is:
lunacy
(Other definitions for lunacy that I've seen before include "Extreme folly, insanity" , "Madness, insanity" , "Foolishness" , "Moon madness" , "idiotic act" .)