Second sign of the zodiac (6)
I believe the answer is:
taurus
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">second sign of the zodiac</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for taurus that I've seen before include "Zodiac sign - constellation" , "house" , "Bull star sign" , "Zodiacal bull" , "Mountains in 8 across" .)