MC useful in the kitchen (7)
I believe the answer is:
toaster
'kitchen' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I don't see?
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for toaster that I've seen before include "Machine for making brown bread?" , "one that suggests health" , "Electrical kitchen appliance" , "Kitchenware" , "Best man" .)