Terribly neat feature of Sicily (4)

I believe the answer is:

etna

'feature of sicily' is the definition.
(I've seen this before)

'terribly neat' is the wordplay.
'terribly' indicates anagramming the letters.
'neat' is an anagram of 'ETNA'.

(Other definitions for etna that I've seen before include "Italian smoker" , "Constant smoker" , "It could erupt" , "Sicily's 15" , "Threatening mountain" .)

I've seen this clue in The Daily Express and The Mirror.

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