Daily pork pie? Fool! (7)
I believe the answer is:
charlie
'fool' is the definition.
(I've seen this before)
'daily pork pie?' is the wordplay.
'daily' becomes 'char' (I've seen this before).
'pork pie?' becomes 'lie' (I've seen this in other clues).
'char'+'lie'='CHARLIE'
(Other definitions for charlie that I've seen before include "dope > (cocaine)" , "Code word < for silly fellow" , "Fool; man's name" , "Idiot - cocaine" , "-- Chaplin" .)