Related Clues:

• Child of four
• Short word for one of four born together
• Group heading off for court
• One of four children in the college square?
• Prison dispute heard in the exercise yard?
• Sound playground-type bike: one of four
• Unwisely drag equal number into court
• Leader leaves group of soldiers in square
• One in four gets a bike of sorts
• Area of study?
• Leg muscle, informally
• Extensor muscle
• Team heading off fight, say, in playground
• Thigh muscle, for short
• Frisbee field, perhaps