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Angry discussion caused burnt dictionary? (6,5)

Ross

I believe the answer is:

heated words

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'caused burnt dictionary?' is the definition.
I know nothing about this answer so I can't judge whether it can be defined by this definition.

'angry discussion' is the wordplay.
'angry' becomes 'heated' (I've seen this before).
'discussion' becomes 'words' (I've seen this before).
'heated'+'words'='HEATED WORDS'

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I've seen this clue in the Sydney Morning Herald.
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