Crossword Genius

Hellish stuff from Black Sabbath character with lip filler (9)

Ross

I believe the answer is:

brimstone

I'm a little stuck... Click here to teach me more about this clue!

'hellish stuff from black' is the definition.
I can't judge whether this defines the answer.

'sabbath character with lip filler' is the wordplay.
'sabbath' becomes 's'.
'character' becomes 'tone' (tone can mean a character or mood).
'with' is a charade indicator (letters next to each other).
'lip filler' becomes 'brim' (I can't justify this - if you can you should give a lot more credence to this answer).
's'+'tone'='stone'
'stone' put after 'brim' is 'BRIMSTONE'.

Can you help me to learn more?

(Other definitions for brimstone that I've seen before include "Fire partner" , "Insect" , "It robs men (anag) - old word for sulphur" , "Biblical sulphur that rained with fire on evil cities" , "hellish punishment" .)

I've seen this clue in The Independent.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.