Home planet (5)
I believe the answer is:
earth
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">home planet</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 earth that I've seen before include "underground shelter" , "See 12" , "electrical safety precaution" , "Soil; electrical ground" , "brownish pigment?" .)