Related Clues:
- Cloak and dagger
- Security marking
- Blur success, obviously full of feeling
- Secret radar can enter houses
- A rod below runs deep
- Not known to others
- Hidden; unknown
- Confidence shown by religious group carrying on
- About to enter camp hidden from general view
- Secret about to be concealed by composer
- Mysterious Gabriel mostly being heard?
- Mysterious, secret or obscure
- Unknown or unobserved by others
- It may be told in anger
- Like some identities