Related Clues:

• A lot of popular music nowadays
• Blame, slangily
• Busta's rhymes
• Ludacris's music
• Daunting duty
• Freestyle, maybe
• Responsibilty
• Sharp knock
• Worrisome thing
• Military obligation, e.g.
• Freestyle, perhaps
• Snoop Dogg's music
• Send in a payment
• Reproach
• Take it or beat it