Infamous Roman (4)
I believe the answer is:
nero
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">infamous roman</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for nero that I've seen before include "Cruel Roman emperor" , "Fiddling Roman emperor" , "Emperor (who fiddled while Rome burned?) d. AD68" , "Ruler" , "Roman 9" .)