Drop version of EU blog about Luxembourg (7)
I believe the answer is:
globule
'drop' is the definition.
(thesaurus)
'version of eu blog about luxembourg' is the wordplay.
'version of' indicates anagramming the letters.
'about' is an insertion indicator.
'luxembourg' becomes 'l' (international vehicle registration code).
'eu'+'blog'='eublog'
'eublog' with letters rearranged gives 'globue'.
'globue' enclosing 'l' is 'GLOBULE'.
(Other definitions for globule that I've seen before include "Drop, round particle" , "A small rounded drop" , "Drop of liquid" , "Small ball, of fat say" .)