Label attached to tabloid for the rabble (6)
I believe the answer is:
ragtag
'the rabble' is the definition.
('ragtag' can be a synonym of 'rabble')
'label attached to tabloid' is the wordplay.
'label' becomes 'tag' ('tag' can be a synonym of 'label').
'attached to' says to put letters next to each other.
'tabloid' becomes 'rag' ('rag' can be a synonym of 'tabloid').
'tag' after 'rag' is 'RAGTAG'.
'for' is the link.
(Other definitions for ragtag that I've seen before include "Badly organised" , ". . . . . . and bobtail, the rabble" , "Disparaging term for the common people" , "Disreputable group of people" , "Common people, riff-raff - ...... and bobtail" .)