Exquisite (4)
I believe the answer is:
rare
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">exquisite</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rare that I've seen before include "Very scarce, like undercooked steak" , "Occurring infrequently" , "Very infrequent or scarce" , "Special" , "Rear up, being scarce" .)