Blew up dam? Deny it! (9)

I believe the answer is:

dynamited

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'blew' is the definition.
The definition and answer can be both related to change as well as being past participle verbs.
Maybe they are linked in a way I don't understand?

'up dam? deny it' is the wordplay.
'up' indicates anagramming the letters (letters get chucked up).
'dam'+'deny'+'it'='damdenyit'
'damdenyit' is an anagram of 'DYNAMITED'.

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I've seen this clue in The Irish Independent.

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