Comment about jam pudding (4,4)

I believe the answer is:

eton mess

'pudding' is the definition.
(Eton mess is a dessert)

'comment about jam' is the wordplay.
'comment' becomes 'note' (note is a kind of comment).
'about' is a reversal indicator.
'jam' becomes 'mess' (both can mean a difficult situation).
'note' in reverse letter order is 'eton'.
'eton'+'mess'='ETON MESS'

(Another definition for eton mess that I've seen is " Sweet".)

I've seen this clue in The Guardian.

Want a hint initially instead of a full solution? Install my app