Discover a French painting, maybe Henri's first (7)
I believe the answer is:
unearth
'discover' is the definition.
(to unearth is to discover or find)
'a french painting maybe henri's first' is the wordplay.
'a french' becomes 'une' ('a' in French).
'painting maybe' becomes 'art' (painting is an art. I am not sure about the 'maybe' bit.).
'henri's first' becomes 'h' (ast letter of 'henri').
'une'+'art'+'h'='UNEARTH'
Can you help me to learn more?
(Other definitions for unearth that I've seen before include "Excavate, dig up" , "reveal" , "Discover" , "Expose" , "Disinter" .)