Painter, unknown character meeting queen after church (7)
I believe the answer is:
cezanne
'painter' is the definition.
(I've seen this before)
'unknown character meeting queen after church' is the wordplay.
'unknown character meeting' becomes 'z' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'queen' becomes 'anne' (Queen Anne, z8th-century queen).
'after' says to put letters next to each other.
'church' becomes 'CE' (abbreviation for Church of England).
'z'+'anne'='zanne'
'zanne' put after 'ce' is 'CEZANNE'.
Can you help me to learn more?
(Other definitions for cezanne that I've seen before include "Paul -, Fr. Impressionist" , "French impressionist painter" , "Paul --, French painter" , "French post-impressionist painter" , "Paul ---, post-Impressionist" .)