Seducer (8)
I believe the answer is:
lothario
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">seducer</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lothario that I've seen before include "Heartbreaker" , "Womaniser, philanderer" , "Gay seducer" , "A literary libertine or womaniser" , "Libertine or woman-chaser" .)