Arthropod (6)
I believe the answer is:
insect
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arthropod</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that insect is a type of arthropod)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for insect that I've seen before include "Contemptible person" , "Nicest (anag) - six-footer" , "Fly, say?" , "Bug" , "Imago" .)