Incendiary Formula One update (9)

I believe the answer is:

firebrand

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'incendiary' is the definition.
(thesaurus)

'formula one update' is the wordplay.
'formula one' becomes 'FI' (resembles Fr).
'update' becomes 'rebrand' (I can't justify this - if you can you should believe this answer much more).
'fi'+'rebrand'='FIREBRAND'

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(Other definitions for firebrand that I've seen before include "Troublemaker" , "Rabble-rouser" , "Energetic person often fomenting trouble" , "One who stirs up trouble" , "Agitator" .)

I've seen this clue in The Daily Express.

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