Possible Clues:

• Patriotic song puts worker on edge
• The man for a rousing song
• Uplifting music essential to the churchman? The Magnificat
• The insect gets to the border in the church, by the sound of it (6)
• Celebratory song found in 'Iolanthe' maybe
• National song, e.g.
• North of border, soldier perhaps displays air of patriotism?
• Social worker on border song
• One lives in a hill over the Border
• If it's old-fashioned, vocally