Reduce to powder (9)
I believe the answer is:
pulverise
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">reduce to powder</span>' is the definition.<br/ ><span class="explanation-format__explanation">('reduce to powder'->'pulverize' is in my internal thesaurus and 'ize'->'ise')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for pulverise that I've seen before include "Grind to powder" , "Reduce to dust (S, not Z)" , "Beat to a pulp" , "defeat" , "Crush thoroughly in a repulsive way" .)