Mythical creatures, we elves, row violently (10)

I believe the answer is:

werewolves

'mythical creatures' is the definition.
(werewolf is a kind of mythical creature)

'we elves row violently' is the wordplay.
'violently' is an anagram indicator (letters are violently disrupted).
'elves'+'row'='elvesrow'
'elvesrow' anagrammed gives 'rewolves'.
'we'+'rewolves'='WEREWOLVES'

(Another definition for werewolves that I've seen is " Incredibly changeable people".)

I've seen this clue in The Telegraph.

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