Very small person (5)
I believe the answer is:
titch
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">very small person</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for titch that I've seen before include "Small man (colloq.)" , "small one" , "Small person" , "Little one" , "One's very short" .)