Time of confusion, by the sound of it (4)
I believe the answer is:
days
'time' is the definition.
(thesaurus)
'confusion by the sound of it' is the wordplay.
'confusion' becomes 'daze' (daze is a kind of confusion).
'by the sound of it' shows a homophone (sound like).
'daze' is a homophone of 'DAYS'.
'of' is the link.
(Other definitions for days that I've seen before include "See 25" , "Times" , "See 7 and 18" , "24-hour periods" , "Periods (of week)" .)