Staff outside welcoming lad in navy (9)

I believe the answer is:

personnel

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'staff' is the definition.
(I know that staff can be written as personnel)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for personnel that I've seen before include "Manpower" , "Staff complement of a business" , "Members of staff" , "Employees collectively" , "Staff complement of an organisation" .)

I've seen this clue in The Telegraph.

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