Related Clues:
- Management ally of a sort
- Union's bane
- Scrape aftermath
- Fill-in for a striking worker
- Strike spurner
- Union enemy
- Union deserter, maybe
- Natural wound cover
- Persona non grata at a strike
- Road rash reminder
- Union underminer
- Encrustation for the strikebreaker
- Someone who works during a strike
- Crust forming over wound
- Crust over sore or strike-breaker