Star can work (7)
I believe the answer is:
canopus
'star' is the definition.
(I've seen this before)
'can work' is the wordplay.
'work' becomes 'opus' (an opus is an artistic work).
'can'+'opus'='CANOPUS'
(Other definitions for canopus that I've seen before include "Shiner" , "Ancient Egyptian vase" , "A luminary" , "Ancient Egyptian funeral jar to hold entrails" , "Second brightest star in the sky" .)