Sanity (6)
'sanity' is the definition.
(reason is a kind of sanity)
This is all the clue.
(Other definitions for reason that I've seen before include "Motive or right thinking" , "Think in a logical way" , "Logic of senora" , "Cause; mind's power" , "Justification or motive" .)
'sanity' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for wits that I've seen before include "They express themselves humorously" , "Intelligence" , "Canniness" , "Senses" , "Wags, quipsters" .)