Related Clues:

• 51-Across need
• "Man" in "The Wizard of Oz"
• Vibrater in a wind
• Can composition
• Clarinetist's item
• Rectangular loaf of bread
• Plant developed for manufacture of instruments
• Does, perhaps, go back to grass
• Music pipe
• Note nitrogen is one element
• Does, perhaps, return in a rush
• Type of grass
• Rush the animals back
• Sn; can
• Grass in which animal rolls over