Dissident group ousting leader in fratricidal gesture (6)

I believe the answer is:

action

I'm a little stuck... Click here to teach me more about this clue!

'fratricidal gesture' is the definition.
'action' can be an answer for 'gesture' (thesaurus). I am not sure about the 'fratricidal' bit.

'dissident group ousting leader' is the wordplay.
'dissident group' becomes 'faction'.
'ousting leader' means to remove the first letter (to oust is to remove).
'faction' with its first letter removed is 'ACTION'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for action that I've seen before include "Litigation" , "Lawsuit; something done" , "Lawsuit; thing done" , "claim in court" , "Lawsuit; armed conflict" .)

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.