Philanthropist (12)
I believe the answer is:
humanitarian
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">philanthropist</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 humanitarian that I've seen before include "Compassionate" , "Altruistic" , "Philanthropist" .)