Crossword Genius

Touring, used a weapon (4,3)

Ross

I believe the answer is:

riot gun

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'a weapon' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'touring used' is the wordplay.
'used' indicates an anagram.
'touring' with letters rearranged gives 'RIOT GUN'.

Can you help me to learn more?

I've seen this clue in The Daily Express.
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