Related Clues:
- Leftover matter
- Residue
- Recharge one's batteries
- Additional ones not itemized
- Move to first class, e.g.
- Stop arguing
- Traces of gunpowder at a crime scene, e.g.
- Reason for a stop
- Whatever's still there
- Unused portion
- Stand still
- See 51 Across
- Freedom from activity
- There's none for the weary
- Leftover stuff