Actor Calhoun (4)
I believe the answer is:
rory
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">actor calhoun</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for rory that I've seen before include "Form of Gaelic name Ruairidh, rhymes with Conservative" , "Fellow" , "Irishman" , "Male" , "Gaelic man?" .)