| Answer | Crossword Clue |
|---|---|
| ITISI | Formal-sounding response to "Who's there?" |
| ITISI | Formal response to "Who's there?" |
| ITISI | Formal "Who's there?" response |
| ISI | "It ..": formal "Who's there?" response |
| ITSI | Odd-sounding reply to "Who's there?" |
| ITSI | Odd-sounding albeit grammatical answer to "Who's there?" |
