Wannabe (5)
I believe the answer is:
poser
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">wannabe</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for poser that I've seen before include "question master?" , "Spore raises a difficult question" , "Particularly baffling problem" , "Question - a sitter" , "Attitudiniser" .)