Tossed fragments of tin etc after refining (8)

I believe the answer is:

confetti

I'm a little stuck... Click here to teach me more about this clue!

'refining' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.

'tossed fragments of tin etc' is the wordplay.
'of tin etc' can be anagrammed to 'CONFETTI'.
But, I am not sure how the anagram is indicated.

'after' acts as a link.

Can you help me to learn more?

(Other definitions for confetti that I've seen before include "Bits thrown at weddings" , "Pieces of coloured paper thrown at weddings" , "Coloured paper thrown at a wedding" , "It is thrown at happy 16s" , "Tiny bits of celebratory coloured paper" .)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.

Connecting...