Possible Clues:

• Keep moving marble, holding it
• Does that stir it up for lead actor in theatre hiding a fair amount of irritation?
• Stir; worry
• Disturb the thing set in stone
• Rabble-rouse; provoke
• An entrance without it produces stir
• Test the strength of, chemically
• Stone accepts sex trouble
• Trouble from Italian blocking a door
• Stir; tie a tag (anag.)