Baffling questions (6)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">baffling questions</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 posers that I've seen before include "They pretend to be something they're not" , "Baffling questions" , "Puzzling questions or problems" .)