Music from the French composer's last work (5)
I believe the answer is:
largo
'music' is the definition.
(largo is a kind of music)
'the french composer's last work' is the wordplay.
'the french' becomes 'la'.
'last' indicates one should take the final letters.
'work' becomes 'go' ('go' can be a synonym of 'work').
The last letter of 'composer' is 'r'.
'la'+'r'+'go'='LARGO'
'from' acts as a link.
(Other definitions for largo that I've seen before include "Musical piece" , "Goldfinger part" , "In a slow tempo (mus.)" , "Key -, Humphrey Bogart film" , "at stately speed" .)