Hazel may describe this other girl (4)
I believe the answer is:
iris
'girl' is the definition.
(girl's name)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for iris that I've seen before include "Fleur-de-lys" , "Nice flower or eye part" , "Woman" , "Eye diaphragm" , "--- Murdoch, author" .)