Official in black who regularly sends people off (7,8)

I believe the answer is:

funeral director

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This could be a double definition.

'official' is the first definition.
The definition and answer can be both people as well as being singular nouns.
Maybe there's an association between them I don't understand?

'black who regularly sends people off' is the second definition.
The definition and answer can be both people as well as being singular nouns.
Maybe you can see an association between them that I don't see?

'in' acts as a link.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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