Possible Clues:

• Unifying song
• Small carriage
• 'God Save the Queen,' for one
• Patriotic tune the man composed
• Worker on the border similar to 10 across
• Some paean the monarchy uses
• Man worried about the country song
• He-man ordered to keep time in country song?
• Uplifting song — the man (anag)
• Article by leader of Mormons on an uplifting song