Aim the wrong way in folly (7)
I believe the answer is:
madness
This might be a double definition.
'aim the wrong way' is the first definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
'folly' is the second definition.
(I know that folly can be written as madness)
'in' acts as a link.
Can you help me to learn more?
(Other definitions for madness that I've seen before include "Folly" , "Insanity" , "Lunacy - ska/pop band" , "Irrationality" , "great anger" .)