Actor ____ Baldwin (4)
I believe the answer is:
alec
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">actor baldwin</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for alec that I've seen before include "Boy's name (a smart one?)" , "Guinness (a smart lad?)" , "A smart . . . . is a know-all in lace" , "Smart ..., he thinks he knows everything" , "Smart chap" .)