Gap between words (5)
I believe the answer is:
space
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">gap between words</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for space that I've seen before include "Emptiness" , "A particular area for paces" , "Empty area, may be outer" , "Expanse" , "sci-fi theme" .)