Muse of love poetry (5)
I believe the answer is:
erato
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">muse of love poetry</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 erato that I've seen before include "Greek muse - orate (anag)" , "Clio's sister" , "inspiration for poetry" , "One of nine" , "verses she inspired" .)