Possible Clues:

• Two short ways to create part of musical system
• Lines on which music is written
• Barrel plank
• Notes written here in Home Counties about tax return
• Where to write notes, musically
• Poem portion
• Wine barrel strip
• Word used in place of 'chapter' in 'A Christmas Carol'
• Bevelled plank for making a barrel - or fivel horizontal lines in music notation
• Prevent, with ''off''