Decent leg breaks not deployed (9)

I believe the answer is:

neglected

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'deployed' is the definition.
Although both the answer and definition are past participle verbs, I can't understand how one could define the other.

'decent leg breaks' is the wordplay.
'breaks' indicates an anagram.
'decent'+'leg'='decentleg'
'decentleg' with letters rearranged gives 'NEGLECTED'.

'not' acts as a link.

Can you help me to learn more?

(Other definitions for neglected that I've seen before include "Treated carelessly" , "Disregarded or failed to do something" , "Overgrown" , "Ignored or failed to do" , "Ignored, left undone" .)

I've seen this clue in The Independent.

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