Related Clues:
- 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
- Crusted sore on cut or wound
- Crust on wound, or a blackleg
- So as to break strike, it needs the Bard to make it cover