Absolutely no disposition to suffer at all (4,7)

I believe the answer is:

flat refusal

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'disposition to suffer at all' is the definition.
I can't tell whether this defines the answer.

'absolutely no' is the wordplay.
'absolutely' becomes 'flat' (I've seen this before).
'no' becomes 'refusal' (refusing is saying no).
'flat'+'refusal'='FLAT REFUSAL'

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I've seen this clue in The Globe and Mail.

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