Chewed English snack (4)
I believe the answer is:
bite
'snack' is the definition.
(I know that snack can be written as bite)
'chewed english' is the wordplay.
'chewed' becomes 'bit'.
'english' becomes 'e' (abbreviation).
'bit'+'e'='BITE'
(Other definitions for bite that I've seen before include "(Of fish) take the bait" , "Snake or insect wound" , "Clamp down teeth" , "Mouthful" , "Quick snack" .)