| Answer | Crossword Clue |
|---|---|
| SOS | Signal at sea. |
| SOS | Distress signal at sea |
| SOS | Frantic signal at sea |
| HOIST | Signal flags, at sea |
| SOS | Sea signal |
| SOS | Sea signal. |
| TWOLIGHTS | Signal "if by sea" |
| TWO | "..... if by sea" (part of Revere's signal) |
| TWO | "... if by sea" (part of Revere's signal) |
