Clue: Not quite full backing for Queen and Country (5)
Answer: NIGER
Explanation: Definition: Country
This looks as if it should be GIN[x]< + ER, but I can't find anything suitable meaning "full". Or maybe NIG[H], meaning "not quite"? Or a lift-and-separate: "backing" = back IN + G? *Thanks to Tom and Muffyword: it's REGIN[A], reversed