Related Clues:

• What it's all about
• Main subject
• Life support
• Pump output
• Tire inflater
• Pocket filler?
• Subject under discussion
• You can't live without it
• Talk with an Irish brogue, e.g.
• Some find it hard to carry
• School composition
• Bring up, as a grievance
• Very small sum
• Springy tune
• Classical, e.g.