On the radio confuse periods of time (4)
I believe the answer is:
days
'periods of time' is the definition.
(I've seen this in another clue)
'on the radio confuse' is the wordplay.
'on the radio' shows a homophone (sound like).
'confuse' becomes 'daze' (I've seen this in another clue).
'daze' is a homophone of 'DAYS'.
(Other definitions for days that I've seen before include "Sun, Mon, Tues, ..." , "` `They are not long, the .... of wine and roses' ' (Dowson)" , "Time period(s)" , "Units of time" , "Sevenths of a week" .)