Exaggerated concerning strike at noon (9)
I believe the answer is:
overblown
'exaggerated' is the definition.
(I've seen this before)
'concerning strike at noon' is the wordplay.
'concerning' becomes 'over' (both can mean relating to).
'strike at' becomes 'blow' (I can't explain this - if you can you should give a lot more credence to this answer).
'noon' becomes 'n' (abbreviation for noon).
'over'+'blow'+'n'='OVERBLOWN'
Can you help me to learn more?
(Other definitions for overblown that I've seen before include "fifteen [POMPOUS]" , "roses being so past their best" , "excessive" , "pretentious" , "bombastic" .)