Approve of English language sweeping across Germany (7)
I believe the answer is:
endorse
'approve of' is the definition.
(thesaurus)
'english language sweeping across germany' is the wordplay.
'english' becomes 'e' (abbreviation).
'language' becomes 'norse' (Norse is an example**).
'sweeping across' is an insertion indicator.
'germany' becomes 'd' (international vehicle registration code).
'norse' going around 'd' is 'ndorse'.
'e'+'ndorse'='ENDORSE'
(Other definitions for endorse that I've seen before include "Sanction -- red nose (anag)" , "Sore end (anag.)" , "Approve of, sign on back as of cheque" , "Say you approve" , "Approve - support" .)