A corrupt builder neglecting finish can be picked up (7)

I believe the answer is:

audible

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'up' is the definition.
Both the definition and answer are adjectives. Maybe they are linked in a way I don't understand?

I don't understand the remainder of the clue.

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(Other definitions for audible that I've seen before include "that one can catch" , "Able to be heard" , "not to be missed?" , "Bail due (anag.)" , "Loud enough to be heard" .)

I've seen this clue in The Guardian.

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