Related Clues:
- Halfway
- Monkey's place?
- Puzzling problem
- Centre
- Waistline
- Difficult problem
- Pivotal part
- Central feature
- With 44-Down, educational stage ... or a hint to the contents of 18-, 22-, 47- and 53-Across
- Central point, as of an argument
- Its equally distant from all directions
- Equally distant from the extremes
- Centre or core
- Essence or gist
- It's equidistant from the extremes