Red admiral or comma, eg (9)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
butterfly
(Other definitions for butterfly that I've seen before include "Skipper for instance" , "Peacock or red admiral, for example" , "Winged insect and swimming stroke" , "Idea that a small change can have major consequences elsewhere" , "Insect; flighty person" .)