Tabloid group’s daily event (6)
I believe the answer is:
sunset
'daily event' is the definition.
(I've seen this in another clue)
'tabloid group's' is the wordplay.
'tabloid' becomes 'Sun' (The Sun, UK newspaper).
'group' becomes 'set' (both can mean a collection).
'sun'+'set'='SUNSET'
(Other definitions for sunset that I've seen before include "Time of evening colour" , "Close of day" , "Day's end" , "Nightfall" , "brilliant decline?" .)