Excessively particular (5)

I believe the answer is:
picky
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">excessively particular</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 picky that I've seen before include "Excessively fastidious" , "Finicky" , "Excessively particular" , "Fussy" , "Discriminating" .)