Crossword Genius

Staff, most of them being around years (6)

Ross

I believe the answer is:

thyrse

I'm a little stuck... Click here to teach me more about this clue!

This clue could be a double definition.

'staff' is the first definition.
Both the definition and answer are singular nouns.
Maybe you can see an association between them that I don't see?

'most of them being around years' is the second definition.
I can't judge whether this defines the answer.

Can you help me to learn more?

(Another definition for thyrse that I've seen is " staff associated with drinking?".)

I've seen this clue in The Sunday Times and The Times.
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