| Pen piece | 9 |
| Pen pen | 7 |
| Pen patter | 10 |
| Pen pas? | 8 |
| Pen parts | 9 |
| Pen partners | 12 |
| Pen partner of the past | 23 |
| Pen partner | 11 |
| Pen part | 8 |
| Pen parlance | 12 |
| Pen pals? | 9 |
| Pen pals, perhaps | 17 |
| Pen pals' preoccupation, perhaps? | 37 |
| Pen pals' homes? | 20 |
| Pen pals' go-betweens | 25 |
| Pen pals' exchange? | 23 |
| Pen pals' ever increasing expense | 37 |
| Pen pal? | 8 |
| Pen pal: Abbr. | 14 |
| Pen pal, probably, in Paris | 27 |
| Pen pal's response? | 23 |
| Pen pal's purchase | 22 |
| Pen pal's protest? | 22 |
| Pen pal's plea | 18 |
| Pen pal's place? | 20 |
| Pen pal's locale? | 21 |
| Pen pal's greeting? | 23 |
| Pen pal's activity | 22 |
| Pen pal in Paris, perhaps | 25 |
| Pen pal greetings? | 18 |
| Pen pal chatter? | 16 |
| Pen pal | 7 |
| Pen pad? | 8 |
| Pen pa? | 7 |
| Pen output | 10 |
| Pen or pound | 12 |
| Pen or pencil, e.g. | 19 |
| Pen or Pay follower | 19 |
| Pen or lighter | 14 |
| Pen or hen | 10 |
| Pen or cob | 10 |
| Pen option | 10 |
| Pen on a ship | 13 |
| Pen occupants | 13 |
| Pen noises | 10 |
| Pen noise | 9 |
| Pen needs | 9 |
| Pen necessity | 13 |
| Pen names? | 10 |
| Pen names derived from real people | 34 |
| Pen names | 9 |
| Pen name? | 9 |
| Pen name: Abbr. | 15 |
| Pen name used by Viaud | 22 |
| Pen name of writer Viaud | 24 |
| Pen name of writer J. Schopfer | 30 |
| Pen name of the Brontës | 26 |
| Pen name of Philo Vance's creator | 37 |
| Pen name of novelist Viaud | 26 |
| Pen name of novelist de la Ramée | 35 |
| Pen name of Munro | 17 |
| Pen name of Mary Ann Evans | 26 |
| Pen name of Marie Louise de la Ramée | 39 |
| Pen name of Jean-Baptiste Poquelin | 34 |
| Pen name of Jacques Thibault | 28 |
| Pen name of H.H. Munro | 22 |
| Pen name of H. H. Munro | 23 |
| Pen name of fame | 16 |
| Pen name of etiquette doyenne Judith Martin | 43 |
| Pen name of Emile Chartier | 26 |
| Pen name of Elizabeth Mackintosh | 32 |
| Pen name of columnist Pauline Phillips | 38 |
| Pen name of Coleridge's good friend | 39 |
| Pen name of Charles Lamb | 24 |
| Pen name of Charles Henry Smith | 31 |
| Pen name of Charles Dodgson | 27 |
| Pen name of Charles Dickens | 27 |
| Pen name of Baronne Dudevant | 28 |
| Pen name for Ramée | 21 |
| Pen name for H. H. Munro | 24 |
| Pen name for Dickens | 20 |
| Pen name for Clemens | 20 |
| Pen name for Charles Lamb | 25 |
| Pen name for Angela Lansbury's character on "Murder, She Wrote" | 77 |
| Pen name for actor Richard? | 27 |
| Pen name for "The Conning Tower" columnist | 52 |
| Pen name | 8 |
| Pen mothers | 11 |
| Pen man? | 8 |
| Pen maker | 9 |
| Pen knives? | 11 |
| Pen knife? | 10 |
| Pen knife | 9 |
| Pen insert | 10 |
| Pen ink | 7 |
| Pen inhabitant | 14 |
| Pen in | 6 |
| Pen holdings | 12 |
| Pen holders? | 12 |
| Pen holders | 11 |