One piece of news – or a couple (4)
I believe the answer is:
item
'one piece of news' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for item that I've seen before include "Two lovers as one" , "Two people considered together (informal)" , "couple linked" , "Detail (in a list)" , "Bit of information" .)