Examples of subtle humour that is found in clubs (7)

I believe the answer is:

ironies

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'examples of subtle humour' is the definition.
The definition and answer can be both related to communication as well as being plural nouns.
Maybe there's a link between them I don't understand?

'that is found in clubs' is the wordplay.
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'found in' indicates putting letters inside.
'clubs' becomes 'irons' (iron is a kind of club).
'ie' going within 'irons' is 'IRONIES'.

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(Another definition for ironies that I've seen is " Satires".)

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

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