Cram in too much duck -- avert reprocessing with English stuffing (7)
I believe the answer is:
overeat
'cram' is the definition.
(thesaurus)
'too much duck avert reprocessing with english stuffing' is the wordplay.
I cannot really understand how this works, but
'duck' could be 'o' (resembles zero - 'duck' in cricket) and 'o' is present in the answer.
'english' could be 'e' (abbreviation) and 'e' is found in the answer.
an anagram of 'avert' is 'vreat' which is present in the left over letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'in' acts as a link.
Can you help me to learn more?
(Other definitions for overeat that I've seen before include "Consume excessively" , "Stuff oneself silly" , "Consume too much food, stuff your stomach" , "Consume too much like a glutton" , "Indulge in gluttony" .)