Without shape (8)
I believe the answer is:
formless
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">without shape</span>' is the definition.<br/ ><span class="explanation-format__explanation">('shape' can be 'form' (synonyms) so maybe 'without shape' can be ''formless')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for formless that I've seen before include "Without shape" , "Lacking shape" , "Blobby" .)