Epic moves to halt murderer (2,5,7)

I believe the answer is:

le morte darthur

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'epic' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'moves to halt murderer' is the wordplay.
'moves' indicates anagramming the letters.
'to'+'halt'+'murderer'='tohaltmurderer'
'tohaltmurderer' with letters rearranged gives 'LE MORTE DARTHUR'.

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(Another definition for le morte darthur that I've seen is " legendary cycle".)

I've seen this clue in The Times and The Sunday Times.

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