Abode of the dead (5)
I believe the answer is:
hades
'abode of the dead' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for hades that I've seen before include "Greek god of the underworld" , "The underworld where the souls of the dead live" , "It's classical hell in the shade" , "In Greek myth, the Underworld" , "Classical underworld" .)