Come back to settle in, but not for good (4)

I believe the answer is:

evil

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'good' is the definition.
The definition and answer can be both human attributes as well as being singular nouns.
Maybe they are linked in a way I don't understand?

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for evil that I've seen before include "Excellent" , "Extremely wicked" , "Live badly in depravity" , "'The ... that men do lives after them' (Shakespeare)" , "Great wickedness" .)

I've seen this clue in the Evening Standard.

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