Undercover agent
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">undercover agent</span>' is the definition.<br/ ><span class="explanation-format__explanation">(mole is a kind of undercover agent)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for mole that I've seen before include "Furry burrowing animal" , "Spy; burrower" , "sauce" , "Skin blemish and burrowing animal" , "Small burrowing animal" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">undercover agent</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for spy that I've seen before include "Undercover agent" , "Catch sight of" , "Notice" , "One gathers information on enemies" , "One who collects secret information as for government" .)