...and regularly seen in daily show (4)
I believe the answer is:
also
'and' is the definition.
'regularly seen in daily show' is the wordplay.
'regularly seen in' means one should take alternating letters.
'daily'+'show'='dailyshow'
The alternate letters of 'dailyshow' are 'ALSO'.
(Other definitions for also that I've seen before include "on top" , "in accompaniment" , "As well, in addition" , "Item" , "Additionally" .)