Car was leaking endlessly, in condition to be picked up (7)
I believe the answer is:
'in condition to be picked up' is the definition.
(able to be heard or picked up)
'car was leaking endlessly' is the wordplay.
'car' becomes 'audi' (Audi is a German car brand).
'was leaking' becomes 'bled' (bleed can mean to leak something).
'endlessly' means to remove the last letter.
'bled' with its final letter removed is 'ble'.
(Other definitions for audible that I've seen before include "Able to be heard" , "Easily caught" , "Capable of being heard" , "Within hearing range" , "Distinct" .)