Relating to space (7)
I believe the answer is:
spatial
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">relating to space</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 spatial that I've seen before include "describing area?" , "Of arrangements in three dimensions" , "Of room; alas tip (anag.)" , "Space-related (T, not C)" , "Relating to space" .)