Bland stuff a pub's cooked — left with little hesitation (7)
I believe the answer is:
pabulum
'bland stuff' is the definition.
'a pub's cooked left with little hesitation' is the wordplay.
'cooked' is an anagram indicator.
'left' becomes 'l' (common abbreviation**).
'with' is a charade indicator (letters next to each other).
'little hesitation' becomes 'um'.
'a'+'pub'='apub'
'apub' is an anagram of 'pabu'.
'pabu'+'l'+'um'='PABULUM'
(Other definitions for pabulum that I've seen before include "Insipid (mental) fare" , "Uninspiring food for thought" , "(Insipid) food for mind" , "Bland entertainment" , "Fruit" .)