The kind that turns green (5)
I believe the answer is:
genre
'the kind' is the definition.
(genre is a kind of kind)
'turns green' is the wordplay.
'turns' indicates anagramming the letters.
'green' is an anagram of 'GENRE'.
'that' acts as a link.
(Other definitions for genre that I've seen before include "Brand" , "Category of literature" , "Category (of art)" , "Kind" , "Literary or artistic type or style" .)