His work was done by Friday (6)
I believe the answer is:
crusoe
'his work was done by friday' is the definition.
The definition suggests a singular noun which matches the answer.
This is the entire clue.
Can you help me to learn more?
(Other definitions for crusoe that I've seen before include "Robinson -, (Defoe's castaway)" , "Abandoned" , "Robinson . . . . . . literary castaway" , "5 down [CASTAWAY]" , "See 9" .)