Art category (5)
I believe the answer is:
genre
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">art category</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for genre that I've seen before include "Artistic or literary category" , "Style/category of art" , "Green (anag)" , "Particular style of art or literature, may be green" , "Literary type, species" .)