| Maximum number of party attendees, perhaps |
| First word across in the first-ever crossword (1913) and the first of a dozen appearances of the word in this puzzle's grid, written word search-style (left, right, down, and diagonally) ... Can you f |
| Activity suggested by this puzzle's theme entries |
| Activity of many Americans |
| Activity of a ghost in a flat? |
| Searches thoroughly |
| Activity requiring a crash course? |
| Chef's activity, at times |
| Party snack |
| French-speaking country where illegal activity runs rampant? |
| Activity dreaded by QB's |
| Activity at a doctor's office |
| Party attender |
| Attend a party uninvited ... and a literal hint to five sets of circled letters |
| Tummy sound — discover (an illicit activity) |
| Actress searches? |
| Assortment on a party platter |
| Frat brother's activity |
| Like some computer searches |
| Altruistic activity |
| Overnight activity and where it's done |
| Author Rand admired by the Tea Party |
| Party who avoids parties |
| Searched thoroughly, with "through |
| Note on some birthday party invites |
| Ancient medical researcher |
| Preparatory research |
| Party leader? |
| Party animal |
| Professionally feeding partygoers |