Service conductor (6)

I believe the answer is:

priest

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'service conductor' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps you can see an association between them that I don't see?

This is all the clue.

Can you help me to learn more?

(Other definitions for priest that I've seen before include "Vicar" , "Art looking into" , "Religious official" , "Conductor of religious service" , "Father" .)

I've seen this clue in The Globe and Mail.

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