Dissident in favour of analysis (10)

I believe the answer is:

protesting

'dissident' is the definition.
(dissidents protest against the government)

'in favour of analysis' is the wordplay.
'in favour of' becomes 'pro' (being pro a particular cause).
'analysis' becomes 'testing' (analysis can mean testing something).
'pro'+'testing'='PROTESTING'

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.