Some hero demons wear down (5)

I believe the answer is:

erode

'wear down' is the definition.
(to erode is to wear down or decay)

'some hero demons' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'ERODE' can be found hidden inside 'hero demons'.

(Other definitions for erode that I've seen before include "Corrode" , "Eat away" , "Gradually wear away" , "Grind down" , "'Deteriorate, wear away (5)'" .)

I've seen this clue in The Sun.

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