Possible Clues:

• Have them finish at last? That's correct
• Do some editing, taking Imogen in last
• Make scholarly revisions in
• MAKE revisions
• Polish tough guys in EastEnders put on diamonds
• Make correction in written material
• Improve a thesis' quality, e.g.
• Correct people nailed by journalist
• Edit notes about castles, for example
• In the finish yours truly gets to improve