Related Clues:
- Feature of Copenhagen — Danish design kept secret
- Kept out of view
- With 38-Across, unpublicized skill found in each set of circles
- Stashed in a secret spot
- Palmed, say
- Remained concealed
- Avoided being found
- Didn't seek, say
- Stashed secretly
- Didn’t seek
- In high definition, I study the unknown
- Wasn’t a seeker
- Prepared for a surprise party, in a way
- Art to be found in certain puzzles — and in the other across solutions
- With 34-, 36- and 37-Across, ulterior motive ... or a hint to the word concealed in each starred clue's answer