I must think about this (3,2,3)
I believe the answer is:
let me see
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">i must think about this</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for let me see that I've seen before include "Hm" , "a reflective comment" , "I'm thinking - permit me to visualise" , "Get out of my view" , "I must think about this" .)