Opening sections of Howards End lots like Where Angels Fear to Tread (4)
I believe the answer is:
hell
'tread' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe you can see a link between them that I can't see?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for hell that I've seen before include "Underworld" , "Hades, the netherworld" , "uproar" , "Place of vice, misery or turmoil" , "Place of suffering" .)