His mate's crack upset fruity type at yuletide meal (9,4)

I believe the answer is:

christmas cake

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'fruity type at yuletide meal' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'his mate's crack upset' is the wordplay.
'upset' is an anagram indicator.
'his'+'mates'+'crack'='hismatescrack'
'hismatescrack' is an anagram of 'CHRISTMAS CAKE'.

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(Other definitions for christmas cake that I've seen before include "Seasonal confection" , "Rich seasonal food" , "Item of seasonal soft sweet food" , "Seasonal fare" .)

I've seen this clue in The Times.

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