A din that's audible is provoking (6)
I believe the answer is:
annoys
'audible is provoking' is the definition.
I can't judge whether this defines the answer.
'a din' is the wordplay.
'a' becomes 'an'.
'din' becomes 'noys' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'an'+'noys'='ANNOYS'
'that's' is the link.
Can you help me to learn more?
(Other definitions for annoys that I've seen before include "Narks" , "Harasses, pesters" , "Nettles" , "Irritates, bothers" , "Irks, vexes" .)