| Answer | Crossword Clue |
|---|---|
| ENDNOTE | One may close a book |
| slipcase | A close-fitting case open at one side or end for an object such as a book |
| VISITOR | One who may sign a book |
| CALL | One may be close |
| ESC | Key that may close a window |
| QUOTATIONMARKS | These may precede and close a sentence |
| ASASON | How a particularly close nephew may be treated |
