Crossword Genius

Command rests with those on duty (9)

Ross

I believe the answer is:

orderlies

I'm a little stuck... Click here to teach me more about this clue!

'those on duty' is the definition.
I can't judge whether this defines the answer.

'command rests' is the wordplay.
'command' becomes 'order' (order is a kind of command).
'rests' becomes 'lies' ('lie' can be a synonym of 'rest').
'order'+'lies'='ORDERLIES'

'with' acts as a link.

Can you help me to learn more?

(Other definitions for orderlies that I've seen before include "Hospital workers" , "Hospital attendants or soldiers working for officers" , "Soldiers attending superior officers" , "Servants" , "Military or hospital attendants" .)

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