Give commands in succession (5)

I believe the answer is:

order

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'succession' is the definition.
(I've seen this in another clue)

I cannot understand how the rest of the clue works.

(Other definitions for order that I've seen before include "Directive for harmony" , "booking" , "Command, injunction" , "Tell - regulate" , "Select from menu" .)

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

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