Senselessness (6)
'senselessness' is the definition.
(I know that senselessness can be written as inanity)
This is the entire clue.
(Other definitions for inanity that I've seen before include "Puerility" , "act of stupidity" , "Being silly" , "Senselessness - frivolous utterance" , "Mindlessness" .)
'senselessness' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for idiocy that I've seen before include "Foolish action or behaviour" , "Abject stupidity" , "Extreme foolishness" , "Foolishness, asininity" , "Predatory seabird" .)