Cheese for somewhat discontented Brownie (4)
I believe the answer is:
brie
'cheese' is the definition.
(Brie is an example)
'discontented brownie' is the wordplay.
'discontented' says to hollow out the word (remove centre letters) (the word's contents are removed).
'brownie' with its centre taken out is 'BRIE'.
'for somewhat' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for brie that I've seen before include "Round soft Fr. cheese" , "Soft and creamy mild white cheese" , "Bergamot-flavoured tea" , "dairy product" , "cheese-producing region" .)