Sort of cake you quietly consume after eleven? (6-4)

I believe the answer is:

upside-down

'sort of cake' is the definition.

'you quietly consume after eleven?' is the wordplay.
'you' becomes 'u' (commonly used in online communication).
'quietly' becomes 'p' (p for piano and quiet).
'consume' becomes 'down' (synonyms).
'after' says to put letters next to each other.
'eleven?' becomes 'side' (a football side).
'down' put after 'side' is 'sidedown'.
'u'+'p'+'sidedown'='UPSIDE-DOWN'

I've seen this clue in The Times.

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