Possible Clues:

• One may exaggerate boob for which surgeonÍs responsible
• It might cause you to replace some cups
• Over time I am needing scheme to be put in place
• Replacement part, maybe it contains minute blueprint?
• Start of major scheme in Italy needs graft
• Insert rock star Robert's introduction
• Graft, e.g. in a body
• A prosthesis that is placed permanently
• Embed Mike into one factory
• Fix motorway, returning heavy machinery