Tabloid backing nation with flowers (7)
I believe the answer is:
garland
'flowers' is the definition.
(thesaurus)
'tabloid backing nation' is the wordplay.
'tabloid' becomes 'rag' ('rag' can be a synonym of 'tabloid').
'backing' says the letters should be written backwards.
'nation' becomes 'land' ('land' can be a synonym of 'nation'**).
'rag' backwards is 'gar'.
'gar'+'land'='GARLAND'
'with' is the link.
(Other definitions for garland that I've seen before include "Floral wreath" , "Circle of flowers" , "Deck" , "Judy - - , legendary singer" , "US actress and singer" .)