Smear pan to cook cheese (8)
I believe the answer is:
parmesan
'cheese' is the definition.
(Parmesan is an example)
'smear pan to cook' is the wordplay.
'to cook' indicates an anagram.
'smear'+'pan'='smearpan'
'smearpan' is an anagram of 'PARMESAN'.
(Other definitions for parmesan that I've seen before include "Cheese for grating" , "Italian cheese, often grated" , "Spearman (anag) - cheese" , "Dry sharp-flavoured Italian cheese" , "that's grated" .)