Revealing the French monarch accepting answer (7)
I believe the answer is:
leaking
'revealing' is the definition.
(I know that leaking is a type of revealing)
'the french monarch accepting answer' is the wordplay.
'the french' becomes 'le' ('the' in French).
'monarch' becomes 'king' (king is a kind of monarch).
'accepting' is an insertion indicator (inserted letters are accepted).
'answer' becomes 'a' (abbreviation eg in Q and A).
'le'+'king'='leking'
'leking' placed around 'a' is 'LEAKING'.
(Other definitions for leaking that I've seen before include "Seeping out" , "Revealing secret" , "Divulging secret information" , "losing moisture" .)