Concur with copper after incident at centre (8)
I believe the answer is:
coincide
'concur' is the definition.
(I know that concur can be written as coincide)
'copper after incident at centre' is the wordplay.
'copper' becomes 'coin' (I can't justify this - if you can you should give a lot more credence to this answer).
'after' is a charade indicator (letters next to each other).
'at centre' says to take the centre.
The centre of 'incident' is 'cide'.
'coin'+'cide'='COINCIDE'
'with' acts as a link.
Can you help me to learn more?
(Other definitions for coincide that I've seen before include "Happen together" , "Occur together" , "Occur at the same point" , "Happen simultaneously" , "Show correspondence" .)