Arousing art (7)
I believe the answer is:
erotica
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arousing art</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for erotica that I've seen before include "Raunchy material" , "Sexually explicit art" , "sexy stuff" , "(Items of) titillating art" , "Porn" .)