Possible Clues:

• Instigate prison rising
• Agitate this, put R in it and put your foot in it
• Instigate removal of marrow from bone
• Provoke pedant whose temperature's risen up
• Cause, as trouble
• Cause trouble by removing central element of rider support?
• Agitate, foment
• Excite with a bit of spooning?
• Incite prison in revolt
• Be an agitator