Tour leader cut off with nothing connected to historical traitor? (5)

I believe the answer is:

guido

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'connected to historical traitor?' is the definition.
I know nothing about this answer so I can't tell whether this works.

'tour leader cut off with nothing' is the wordplay.
'tour leader' becomes 'guide' (I've seen this before).
'cut off' means to remove the last letter.
'with' says to put letters next to each other.
'nothing' becomes 'O' (looks like zero - 0).
'guide' with its last letter taken away is 'guid'.
'guid'+'o'='GUIDO'

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(Another definition for guido that I've seen is " - - (or Guy) Fawkes".)

I've seen this clue in The Daily Express.

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