Paper thrown at union meeting? (8)
I believe the answer is:
confetti
'paper' is the definition.
(I know that confetti is a type of paper)
'thrown at union meeting?' is the wordplay.
I cannot really see how this works, but
'at' could be 'on' (location) and 'on' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for confetti that I've seen before include "Celebratory paper at wedding" , "shower of a union?" , "Paper rained on newlyweds" , "Small pieces of coloured paper" , "Alternative to rice" .)