On return, met one with the news (4)
I believe the answer is:
item
'news' is the definition.
(I've seen this in another clue)
'on return met one' is the wordplay.
'on return' says the letters should be written in reverse.
'one' becomes 'I' (Roman numeral).
'met'+'i'='meti'
'meti' in reverse letter order is 'ITEM'.
'with the' is the link.
(Other definitions for item that I've seen before include "Element" , "newspaper article" , "Detail - entry" , "Bit of information" , "Individual thing" .)