| Brain-scan letters |
| Archaeologist's letters |
| All, e.g., for this answer's last six letters? |
| Organizations with Greek letters |
| Confusing statements ... and a hint to the circled letters |
| Accompaniers of cover letters: Abbr. |
| Surprises unpleasantly, and a hint to each starred answer's first two + last two letters |
| Attend a party uninvited ... and a literal hint to five sets of circled letters |
| Letters from the family? |
| Bounced-check letters |
| Retirement plan letters |
| Personal letters |
| Adjust space between letters, in printing |
| ICU instruction letters |
| Whatever it takes ... as hinted at in the arrangements of black squares around the circled letters |
| Artistic place for tiny letters? |
| Showroom floor vehicles |
| Filling station letters? |
| Alternate identity letters |
| Start of a bumper sticker that may end with one's favorite (usually expensive) vehicle |
| And so forth" letters |
| Letters of Calvary |
| Memo letters for "I need it now! |
| Adjust spacing between letters, in printing |
| Cyber-opinion letters |
| Agrarian structure, and a hint to the circled letters |
| Rap sheet letters hidden in this puzzle's longest answers |
| ''All systems go,'' in letters |
| Letters on the Internet |
| Missing letters? |