Related Clues:

• One to start?
• Campus center
• Four-sided courtyard
• MSG ingredient?
• Athlete's leg muscle
• College hangout
• Stereo's predecessor
• Target of a squat, for short
• Kind of rail or plane
• Campus area, briefly
• A quarter of tetra-
• Single-channel sound
• Court in sporty vehicle
• Single-speaker sound
• Sort of bike seen in yard