Succession of command (5)

I believe the answer is:

order

I believe this is a double definition.

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

'command' is the second definition.
(I know that order is a type of command)

'of' is the link.

(Other definitions for order that I've seen before include "Direct - class - instruction" , "Decree" , "Type of column" , "Uniformity or fraternity" , "Command; social class" .)

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

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