Possible Clues:

• Put ___ on (limit)
• Put __ on: limit
• Bust ___ (fire off rounds)
• Going on ahead one may explode
• Put — on (limit)
• Put __ on (limit)
• '___ for Steve' (Morley Callaghan short story)
• Set ___ on (limit)
• Put __ on: restrict
• Put -- on (limit)