Related Clues:
- Cracked, as a glass door?
- Just opened
- Tight-lipped
- Hesitant about committing oneself
- Partly open
- Obviously unlocked
- Q: 'When is a door not a door?' A: 'When it's ___'
- Closed to some extent
- Clandestine
- Allowing a peek, in a way
- Allowing a draft, e.g.
- Not exactly closed
- Open a wit
- Cracked a little
- Admitting air