What comes from Iris's topless dancing style (5)
I believe the answer is:
orris
'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.
Can you help me to learn more?
(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" .)