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When rioting her allies cause much trouble (5,4)

Ross

I believe the answer is:

raise hell

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'much trouble' is the definition.
Although both the answer and definition are verbs in their base form, I cannot understand how they can define each other.

'when rioting her allies' is the wordplay.
'when rioting' indicates an anagram.
'her'+'allies'='herallies'
'herallies' anagrammed gives 'RAISE HELL'.

'cause' acts as a link.

Can you help me to learn more?

(Other definitions for raise hell that I've seen before include "create discord" , "create commotion" , "Complain in the strongest possible terms" , "complain vociferously" , "Make trouble" .)

I've seen this clue in The Telegraph.
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