Harder to find (5)
I believe the answer is:
rarer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">harder to find</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 rarer that I've seen before include "steak may be wanted thus?" , "Less often seen" , "Comparatively sparse" , "less easy to find" , "Stranger" .)