Crossword Genius

Regimentation Australians may enjoy (5)

Ross

I believe the answer is:

rules

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'regimentation australians' is the definition.
The definition and answer can be both related to communication as well as being plural nouns.
Maybe you can see a link between them that I don't see?

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for rules that I've seen before include "strips" , "Is king" , "In Australia, football" , "controls" , "Laws; draws lines" .)

I've seen this clue in the Evening Standard.
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