Announcement of exit from excellent group of countries including Germany? (5)
I believe the answer is:
adieu
'announcement of exit' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'excellent group of countries including germany?' is the wordplay.
'excellent' becomes 'ai' (resembles 'A1', old-fashioned term for excellent).
'group of countries' becomes 'EU'.
'including' indicates putting letters inside.
'germany?' becomes 'D' (vehicle registration code for Deutschland).
'ai'+'eu'='aieu'
'aieu' enclosing 'd' is 'ADIEU'.
'from' acts as a link.
Can you help me to learn more?
(Other definitions for adieu that I've seen before include "Goodbye, monsieur" , "Vale" , "Parting word" , "All the best" , "farewell message" .)