Possible Clues:

• Presses the bell, indeed! Must be mad
• Not all there when called into action
• Mad, so to have pressed the bell, indeed!
• Rang the bell, indeed!
• Disordered, mentally perhaps
• Disordered
• Driven mad by half-hearted performance getting cooker installed
• Called to interrupt activity that's mad
• Called into action – driven mad
• Gardened (anag.)