Headless disembodied souls in hell (5)
I believe the answer is:
hades
'hell' is the definition.
(synonyms)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for hades that I've seen before include "Pluto" , "Classical underworld" , "In Greek myth, the Underworld" , "The nether world, hell" , "gloomy place" .)