- Begins ideally within four walls
- Core
- Deep down
- Imprisoned
- Inner part
- Interior
- Internal
- Central part
- Centre
- Core
- Core of an atom
- Core of sun, on reflection, held unusual clue
- Core or centre
- Nub
- Central part
- Centre
- Centre of a wheel
- Centre of activity
- Centre of Mogadishu bothers some
- Core
- Focal point
- Bun is back at the centre of story
- Core
- Crux
- Cruxes
- Gist
- Gist (of story)
- Heart numb once headmaster left
- Basic and most important details of lousy game?
- Basics (5-6)
- Core issue
- Core of the matter (5-6)
- Nub of the matter (5-6)
- Practical details (5-6)