Crazy to release son, and pointless (5)
I believe the answer is:
inane
'pointless' is the definition.
(I've seen this in another clue)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for inane that I've seen before include "Silly, witless" , "Idiotic" , "Vacuous, silly" , "Empty" , "Vapid, fatuous" .)