| Answer | Crossword Clue |
|---|---|
| PRISMS | Periscope parts |
| MIRROR | Periscope part |
| PRISM | Periscope part |
| ARMYTANKS | Periscope users |
| LENS | Periscope piece |
| LENS | Periscope part |
| LENS | Periscope component |
| SUB | Periscope site |
| MILKCARTON | Kid's periscope, perhaps |
| SPY | Use a periscope |
| PEERSAT | Views through a periscope, say |
| SUBTOKEN | Periscope lens kept as a souvenir? |
| SEGA | Maker of the old arcade game Periscope |
| YELLSUBMARINE | What to do when you spot a periscope? |
