Europe's highest volcano (4)
I believe the answer is:
etna
'europe's highest volcano' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for etna that I've seen before include "hotly-tipped runner" , "a mount hotly tipped when it runs" , "Sicilian landmark" , "Italian smoker" , "it may produce steam and ash" .)