Time of confusion, by the sound of it (4)
I believe the answer is:
Here is my best explanation:
'time' is the definition.
'confusion by the sound of it' is the subsidiary indication.
'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 "Twenty four-hour periods", "Periods (of week)", "Periods of time", "Time period(s)", "See 1 down", "` `They are not long, the .... of wine and roses' ' (Dowson)", "Sevenths of a week", "See 25", "Twenty-four hour periods" and "Twenty four hour periods".)