Crossword Genius

Boss angel initially seen in Jesus' birthplace (7)


I believe the answer is:


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'boss' is the definition.
(I know that boss can be written as manager)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for manager that I've seen before include "Decision-maker" , "Coach" , "suit?" , "Controller of resources" , "Ran game (anag.)" .)

I've seen this clue in the Sydney Morning Herald.
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