Spider or scorpion (8)
I believe the answer is:
arachnid
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">spider</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">scorpion</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ ></span>
(Other definitions for arachnid that I've seen before include "Spider or scorpion, e.g." , "Class of animal including spiders and scorpions" , "Mite or tick, for example" , "Harvestman, possibly," , "Animal class including spider, scorpion etc" .)