Revolutionary brags Tours is French city, but wasn't always (10)

I believe the answer is:

strasbourg

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'french city but wasn't always' is the definition.
I can't judge whether this definition defines the answer.

'revolutionary brags tours' is the wordplay.
'revolutionary' is an anagram indicator.
'brags'+'tours'='bragstours'
'bragstours' is an anagram of 'STRASBOURG'.

'is' is the link.

Can you help me to learn more?

(Another definition for strasbourg that I've seen is " City on the Rhine".)

I've seen this clue in The Telegraph.

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