Sweet son coming across bitter, following a flogging (10)

I believe the answer is:

aftersales

'following a flogging' is the definition.
(to flog is to sell)

'sweet son coming across bitter' is the wordplay.
'sweet' becomes 'afters' (both can mean dessert or pudding).
'son' becomes 's'.
'coming across' indicates putting letters inside.
'bitter' becomes 'ale' (type of beer or bitter).
'afters'+'s'='afterss'
'afterss' going around 'ale' is 'AFTERSALES'.

(Another definition for aftersales that I've seen is " Follow up service".)

I've seen this clue in The Times.

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