Great food: not English stuff (6)
I believe the answer is:
fabric
'english stuff' is the definition.
'fabric' can be an answer for 'stuff' (I've seen this before). I am not sure about the 'english' bit.
'great food not' is the wordplay.
'great' becomes 'fab' (short for fabulous).
'food not' becomes 'ric' (I can't explain this - if you can you should give a lot more credence to this answer).
'fab'+'ric'='FABRIC'
Can you help me to learn more?
(Other definitions for fabric that I've seen before include "handiwork?" , "'Cloth, textile (6)'" , "Material in general" , "Manufactured cloth" , "Building structure; textile" .)