Standard means processed cheese (8)
I believe the answer is:
parmesan
'cheese' is the definition.
(I know that Parmesan hyponym of cheese)
'standard means processed' is the wordplay.
'standard' becomes 'par' (standard of play in golf).
'processed' indicates an anagram.
'means' anagrammed gives 'mesan'.
'par'+'mesan'='PARMESAN'
(Other definitions for parmesan that I've seen before include "Dry sharp-flavoured Italian cheese" , "Italian cheese for spearman" , "Italian 8 across" , "Italian cheese, often grated" , "Pam earns this cheese" .)