Daft sayings and crazy doings lacking a point (9)
I believe the answer is:
inanities
'daft sayings' is the definition.
(inane comments)
'crazy doings lacking a point' is the wordplay.
'crazy doings' becomes 'insanities' (insane or reckless acts).
'lacking' suggests deleting specific letters.
'a point' becomes 'S' (S is an example).
'insanities' with 's' taken away is 'INANITIES'.
'and' is the link.
(Other definitions for inanities that I've seen before include "Nonsense" , "They're lacking in ideas" .)