Highest possible rank or status (5)

I believe the answer is:

deity

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'highest possible' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps there's a link between them I don't understand?

I can't explain the rest of the clue.

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(Other definitions for deity that I've seen before include "God or goddess" , "Divinity" , "Refuge" , "Supreme being" , "Supernatural being" .)

I've seen this clue in the Evening Standard.

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