That deep dark place where beer is brewed for us (6)
I believe the answer is:
erebus
'that deep dark place' is the definition.
I can't judge whether this definition defines the answer.
'beer is brewed for us' is the wordplay.
'is brewed' indicates anagramming the letters.
'for' means one lot of letters go next to another.
'beer' anagrammed gives 'ereb'.
'ereb'+'us'='EREBUS'
'where' acts as a link.
Can you help me to learn more?
(Other definitions for erebus that I've seen before include "It's hellish dark" , "Greek god of darkness, son of Chaos" , "In place of darkness" , "Be sure (anag) - Greek god" , "Antarctic volcano; region between earth and Hades" .)