A keg crew found in the debris (8)

I believe the answer is:

wreckage

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

'debris' is the definition.
(I've seen this before)

'a keg crew found' is the wordplay.
'a keg crew' can be anagrammed to 'WRECKAGE'.
But, I'm not clear how this is indicated.

'in the' acts as a link.

Can you help me to learn more?

(Other definitions for wreckage that I've seen before include "Ruined material" , "Remains of destruction" , "Ruin" , "Flotsam" , "Damaged remains" .)

I've seen this clue in the Sydney Morning Herald.

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