Devours a set recipe (4)
I believe the answer is:
eats
'devours' is the definition.
(I've seen this in another clue)
'a set recipe' is the wordplay.
'recipe' indicates anagramming the letters.
'a'+'set'='aset'
'aset' with letters rearranged gives 'EATS'.
(Other definitions for eats that I've seen before include "Food (slang)" , "fare" , "Swallows food" , "Munches" , "(Consumes) food" .)