Uses Aga to make a bite to eat? (7)
I believe the answer is:
sausage
'a bite to eat?' is the definition.
(sausage is a type of food)
'uses aga to make' is the wordplay.
'to make' indicates an anagram.
'uses'+'aga'='usesaga'
'usesaga' anagrammed gives 'SAUSAGE'.
(Other definitions for sausage that I've seen before include "Long, bagged meat product" , "Chipolata, for example" , "Eg, chipolata" , "Banger; snag" , "Assuage (anag.)" .)