Dorothy's dog (4)
I believe the answer is:
toto
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dorothy's dog</span>' is the definition.<br/ ><span class="explanation-format__explanation">(Dorothy's dog in The Wizard of Oz)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for toto that I've seen before include "member of the 5d band" , "Famous film dog" , "Dorothy's dog in The Wizard of Oz" , "[FRIEND OF DOROTHY]" .)