Distance north or south of the equator (8)
I believe the answer is:
latitude
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">distance north or south of the equator</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 latitude that I've seen before include "Imaginery line around the earth" , "Unrestricted" , "non-existent at the Equator?" , "lines on a map" , "Licence" .)