Hearing notable for being set aside (9)
I believe the answer is:
earmarked
'being set aside' is the definition.
(I've seen this before)
'hearing notable' is the wordplay.
'hearing' becomes 'ear' (ear is a kind of hearing).
'notable' becomes 'marked' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'ear'+'marked'='EARMARKED'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for earmarked that I've seen before include "Set aside for a specific purpose" , "Put by for later" , "Carefully chosen" , "appearance of one who underwent piercing?" , "Reserved, set aside" .)