Piece of sombre news in World War II (4)
I believe the answer is:
bren
'world war ii' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'piece of sombre news in' is the wordplay.
'piece of' says the answer is hidden in the clue.
'BREN' is hidden in the letters of 'sombre news in'.
Can you help me to learn more?
(Other definitions for bren that I've seen before include "World War Two machine gun" , "Machine-gun" , "Light machine gun (made in Brno and Enfield)" , "Weapon" .)