Old feline knocked back rolled pancake (4)
I believe the answer is:
taco
'rolled pancake' is the definition.
(rolled-up pancake)
'old feline knocked back' is the wordplay.
'old' becomes 'o' (abbreviation as in OT - Old Testament).
'feline' becomes 'cat' (cat is a kind of feline).
'knocked back' says the letters should be written backwards.
'o'+'cat'='ocat'
'ocat' reversed gives 'TACO'.
(Other definitions for taco that I've seen before include "quick dish" , "Mexican filled tortilla" , "Coat with Mexican dish" , "Folded and filled tortilla" , "Filled rolled tortilla" .)