Raided and managed to get dismissed (9)

I believe the answer is:

ransacked

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'raided' is the definition.
Although both the answer and definition are past participle verbs, I don't understand how they can define each other.

'managed to get dismissed' is the wordplay.
'managed to get' becomes 'ran' (I've seen this in other clues).
'dismissed' becomes 'sacked' ('sack' can be a synonym of 'dismiss').
'ran'+'sacked'='RANSACKED'

'and' is the link.

Can you help me to learn more?

(Other definitions for ransacked that I've seen before include "turned upside down?" , "rifle in the past" , "Plundered" , "Pillaged" , "Rifled" .)

I've seen this clue in The Daily Express.

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