Matinee idol
I believe the answer is:
heartthrob
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">matinee idol</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that heartthrob is a type of matinee idol)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for heartthrob that I've seen before include "idol" , "Beat" , "Object of fascination" , "Romantic and good-looking male celebrity" .)