Sneaky person (6)
I believe the answer is:
weasel
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sneaky person</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for weasel that I've seen before include "Double-dealer" , "E Wales (anag.)" , "Predator" , "Animal related to the stoat" , "Scoundrel" .)