Green species in variety (5)
I believe the answer is:
genre
'variety' is the definition.
(I know that genre is a type of variety)
'green species' is the wordplay.
'green' can be anagrammed to 'GENRE'.
However, I'm not sure how this is indicated.
'in' is the link.
Can you help me to learn more?
(Other definitions for genre that I've seen before include "Particular style of art or literature, may be green" , "Writing style" , "Category (of art)" , "Type or style, of art" , "Artistic or literary category" .)