Hard to please (5)
I believe the answer is:
picky
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hard to please</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for picky that I've seen before include "Excessively particular" , "Fussy" , "Choosy" , "Excessively fastidious" , "Discriminating" .)