Bach's confused with REM? Judge works here (8)
I believe the answer is:
chambers
'judge works here' is the definition.
Although both the answer and 'judge' are nouns, they are not in the same form of the noun.
'bach's confused with rem?' is the wordplay.
'confused with' indicates an anagram.
'bachs' anagrammed with 'rem' can make 'CHAMBERS'.
Can you help me to learn more?
(Other definitions for chambers that I've seen before include "Judge's room - dictionary" , "houses" , "vaults" , "Judge's room for hearing cases in private" , "Set of rooms as for judge" .)