Rule a girl breaks for freedom fighter (9)

I believe the answer is:

guerrilla

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

'freedom fighter' is the definition.
'guerrilla' can be an answer for 'fighter' (I've seen this before). I am not certain of the 'freedom' bit.

'rule a girl breaks' is the wordplay.
'breaks' indicates an anagram.
'rule'+'a'+'girl'='ruleagirl'
'ruleagirl' anagrammed gives 'GUERRILLA'.

'for' acts as a link.

Can you help me to learn more?

(Other definitions for guerrilla that I've seen before include "Combatant" , "Such tactics" , "political insurgent" , "Partisan" , "Irregular fighter" .)

I've seen this clue in The Guardian.

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