In this club, less youthful members convey expression wishing one good health (8)

I believe the answer is:

blessyou

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'members convey expression wishing one good health' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'in this club less youthful' is the wordplay.
'in' indicates the answer is hidden within the clue.
'BLESSYOU' can be found hidden inside 'this club less youthful'.

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I've seen this clue in The Irish Times.

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