Thin-skinned (9)
I believe the answer is:
sensitive
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">thin-skinned</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for sensitive that I've seen before include "Controversial" , "Delicate" , "Responsive to physical stimuli (9)" , "Responsive to physical stimuli or easily offended" , "Quick to respond" .)