Related Clues:

• Gate admitting one at a time
• Pivoting gate, to football grounds say
• Ballpark-entrance device
• One makes sporting admission in revolutionary manner
• Entry gate
• Revolutionary device that has its purpose, one's admitted
• Changes roofing material for gateway
• Short walk to steps and gate
• It's a revolutionary aid to crowd control, one's admitted
• Gate by elevated track lets in oddball
• What controls access or lets it run wild
• Mechanical gate
• Passes hat around where spectators pass
• Means of regulating passage of act is old hat
• Goes with roofing material as a way to gain access