Freakish (9)
I believe the answer is:
unnatural
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">freakish</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for unnatural that I've seen before include "Strange" , "Lacking normal feelings of, say, affection" , "Perverse" , "Freakish" , "Contrived" .)