Possible Clues:

• Personal sign of soldier's upstanding character
• The American soldier's backward character? Sounds all right for him to put it at the bottom
• By the sound of it, the snaps one might expect from royalty
• Identifying piece of writing, tune etc
• Mark of individuality is about good make-up
• Mark, abstract art genius
• One's name in one's own writing
• Nits argue (anag.)
• Moya Brennan album released in 2006
• Certain to include bizarre giant identifying mark