Doctor can misread official agreement (9)
I believe the answer is:
'official agreement' is the definition.
'concordat' can be an answer for 'agreement' (concordat is a kind of agreement). I am unsure of the 'official' bit.
'doctor can misread' is the wordplay.
'misread' indicates an anagram.
'doctorcan' is an anagram of 'CONCORDAT'.
Can you help me to learn more?
(Other definitions for concordat that I've seen before include "Signed agreement" , "papal blessing" , "Agreement with Rome" , "pact" .)