French emperor (8)
I believe the answer is:
napoleon
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">french emperor</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 napoleon that I've seen before include "Frenchman known as The Little Corporal" , "No one, pal, matches this Little Corporal" , "French general and emperor" , "The familiar Bonaparte" , "Extended nap" .)