Complicated ode, abridged and broken down (11)

I believe the answer is:

biodegraded

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'broken down' is the definition.
Both the definition and answer are past participle verbs.
Maybe they are linked in a way I don't understand?

'complicated ode abridged' is the wordplay.
'complicated' is an anagram indicator (a complex or confusing ordering of the letters).
'ode'+'abridged'='odeabridged'
'odeabridged' with letters rearranged gives 'BIODEGRADED'.

'and' is the link.

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