Tourists see it in Sicily before rising (4)
I believe the answer is:
etna
'tourists see it in sicily' is the definition.
I can't judge whether this defines the answer.
'before rising' is the wordplay.
'before' becomes 'ante' (prefix meaning before).
'rising' says the letters should be written backwards (in a down clue, letters go up).
'ante' back-to-front is 'ETNA'.
Can you help me to learn more?
(Other definitions for etna that I've seen before include "burning mountain" , "Sicilian volcano" , "Sicily's 15" , "Dangerous peak" , "Volcano; reverse of stake" .)