My oracle used a sword (8)

I believe the answer is:

claymore

'a sword' is the definition.
(I know that claymore is a type of sword)

'my oracle used' is the wordplay.
'used' indicates an anagram.
'my'+'oracle'='myoracle'
'myoracle' is an anagram of 'CLAYMORE'.

(Other definitions for claymore that I've seen before include "Highland weapon" , "Scottish two-edged sword" , "Something that can cut" , "Highland sword" , "Scottish highlander's sword" .)

I've seen this clue in The Daily Express.

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