Possible Clues:

• "___ Blues" (song written by John Lennon)
• '___ Blues' (song written by John Lennon)
• "___ Favourites" (2005 compilation album from the Tragically Hip)
• '___ Favourites' (2005 compilation album from the Tragically Hip)
• ''___ out!''
• Law follower
• '___ Blues' (track on the Beatles' 'White Album')
• Umpire's word
• Norah Jones's 'Tell ___ Mama'
• Suffix with law