Papers thrown about at union meeting (8)
I believe the answer is:
confetti
'union meeting' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'papers thrown about' is the wordplay.
I cannot quite understand how this works, but
'about' could be 'on' (as in a book 'on' a certain topic) and 'on' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
'at' is the link.
Can you help me to learn more?
(Other definitions for confetti that I've seen before include "Stuff to throw at weddings" , "Paper used at weddings" , "It's targeted at newlyweds" , "Paper pieces thrown at wedding" , "cast only for union celebration" .)