Sicily's volcano (4)
I believe the answer is:
etna
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sicily's volcano</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 etna that I've seen before include "Highest peak in Italy south of the Alps" , "it may produce steam and ash" , "Neat kind of European volcano" , "Europe's highest active volcano" , "Long-term smoker" .)