Case for cheese that is overstrong (5)
I believe the answer is:
brief
'case' is the definition.
(I've seen this before)
'cheese that is overstrong' is the wordplay.
'cheese' becomes 'brie' (Brie is an example).
'that is overstrong' becomes 'f' (I can't justify this - if you can you should believe this answer much more).
'brie'+'f'='BRIEF'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for brief that I've seen before include "Instructions for barrister" , "Concise; short-lived" , "Fibre (anag.)" , "Using few words" , "Provide someone with the facts of the case" .)