Agreement to secure volume for Frenchman? (4)
I believe the answer is:
yves
'frenchman?' is the definition.
(common french name)
'agreement to secure volume' is the wordplay.
'agreement' becomes 'yes'.
'to secure' indicates putting letters inside.
'volume' becomes 'v'.
'yes' going around 'v' is 'YVES'.
'for' acts as a link.
(Other definitions for yves that I've seen before include "-- Montand (French actor)" , "French man" , "-- Saint-Laurent, couturier" , "Frenchman, so-called?" , "Montand, Fr. actor" .)