Reed or Harrison
I believe the answer is:
rex
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">reed</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">harrison</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(actor Rex Harrison)</span><br/ ><br/ ></span>
(Other definitions for rex that I've seen before include "King (L.)" , "King - Harrison?" , "King (Latin); cat breed" , "Part of official title of a king" , "One in the palace" .)