Handily, they show respect of rank (7)
I believe the answer is:
salutes
I'm afraid I can't explain this answer.
Can you help me to learn more?
(Other definitions for salutes that I've seen before include "Greets" , "Military greetings" , "Brief inspection" .)
I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution?
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