Covertly obtain report of First Lady and doctor blocking concession (9)
I believe the answer is:
eavesdrop
'covertly obtain' is the definition.
(to eavesdrop is to secretly listen)
'report of first lady and doctor blocking concession' is the wordplay.
I cannot quite understand how this works, but
'of' could be 'o' and 'o' is located in the answer.
'first' could be 'a' and 'a' is located in the answer.
'lady' could be 'eve' (I've seen this before) and 'eve' is found within the remaining letters.
'doctor' could be 'dr' ('Dr' can be a synonym of 'doctor') and 'dr' is located in the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for eavesdrop that I've seen before include "spy" , "Listen to bug" , "Listen to others' conversation" , "Listen secretly to private talk" , "Deprave so to listen secretly" .)