Related Clues:
- Like 63-Across
- With 30-Across, neon or xenon
- Like xenon and krypton
- Not giving a reaction
- Tuck in, wanting seconds still
- Hard to combine
- Like atoms with full outer shells
- Still at the crease, no boundaries in Perth
- Inactive, chemically
- Lifeless; apathetic
- ... international cover for The Queen Is Dead
- Part of airliner threatens to be unresponsive
- I rent out still
- Still at home -- ends in strife after breakfast
- Inactive, as gases