Crossword Genius

What comes from Iris's topless dancing style (5)

Ross

I believe the answer is:

orris

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'style' is the definition.
The definition and answer can be both plants as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

I can't explain the rest of the clue.

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(Other definitions for orris that I've seen before include "Flag" , "Iris root in perfumery" , "Variety of iris" , "Iris with fragrant rhizome" , "Source of perfume" .)

I've seen this clue in The Independent.
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