Upsetting English routine, carry out food (7)
I believe the answer is:
nurture
'food' is the definition.
(thesaurus)
'upsetting english routine carry out' is the wordplay.
'upsetting' is a reversal indicator.
'english' becomes 'e' (abbreviation).
'routine' becomes 'rut' (rut is a kind of routine).
'carry out' becomes 'run' (both can mean to operate or perform).
'e'+'rut'+'run'='erutrun'
'erutrun' back-to-front is 'NURTURE'.
(Other definitions for nurture that I've seen before include "Nourishment" , "Run true (anag)" , "Care for during upbringing" , "Train" , "Cherish (a hope/belief)" .)