Crossword Genius

On their game, perhaps, some found tossing a used caber (5,5)

Ross

I believe the answer is:

bread sauce

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'on their game perhaps some' is the definition.
I can't tell whether this definition defines the answer.

'tossing a used caber' is the wordplay.
'tossing' indicates anagramming the letters.
'a'+'used'+'caber'='ausedcaber'
'ausedcaber' with letters rearranged gives 'BREAD SAUCE'.

'found' is the link.

Can you help me to learn more?

(Other definitions for bread sauce that I've seen before include "Accompaniment for turkey?" , "something creamy and white?" , "Food dressing" , "chicken might come with it" , "[TRIMMING] ? - with 10a" .)

I've seen this clue in The Telegraph.
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