Hitman's plan to end The Apprentice that's sweet! (5,5)
I believe the answer is:
icing sugar
'sweet' is the definition.
Both the definition and answer are singular nouns.
Maybe there's an association between them I don't understand?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for icing sugar that I've seen before include "Sweet stuff used for cake topping" , "Sweet powder used on cakes etc" , "Cake covering" .)