Switch shot for sizeable slasher (5)

I believe the answer is:

cutto

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'sizeable slasher' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'switch shot for' is the wordplay.
'switch' becomes 'cut' (cutting is a kind of switching).
'shot for' becomes 'to' (eg both can mean 'in the opinion of'. I am not sure about the 'shot' bit.).
'cut'+'to'='CUTTO'

Can you help me to learn more?

(Another definition for cutto that I've seen is " knife".)

I've seen this clue in The Telegraph.

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