Pud served up with tea is the latest thing (6)
I believe the answer is:
update
'the latest thing' is the definition.
(latest version)
'pud served up with tea' is the wordplay.
'served up with' indicates anagramming the letters.
'pud' mixed up with 'tea' can make 'UPDATE'.
'is' is the link.
(Other definitions for update that I've seen before include "Supply latest info" , "Brief" , "Bulletin" , "Latest information" , "Latest news" .)