Local favourite takes nothing from disappointing mark in college (4,11)
I believe the answer is:
pork scratchings
'local favourite takes' is the definition.
The definition suggests a plural noun which matches the answer.
'nothing from disappointing mark in college' is the wordplay.
I cannot really understand how this works, but
'nothing' could be 'scratch' (as in making something 'from scratch') and 'scratch' is found within the answer.
'from' could be 'in' (I've seen this in other clues) and 'in' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for pork scratchings that I've seen before include "snacks" , "bar snack" , "local delicacy" .)