Claudius' successor (4)
I believe the answer is:
nero
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">claudius' successor</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 "Fiddling Roman emperor" , "Emperor who played the fiddle" , "Emperor said to have started the fire that destroyed Rome" , "Matricidal emperor" , "Roman emperor on the fiddle?" .)