| Answer | Crossword Clue |
|---|---|
| SUBMARINECHASER | Foe of a U-boat |
| jackdaw | large grackle, Quiscalus major, of the southeastern U.S., that folds its tail into a shape resembling the keel of a boat |
| SURFACED | Came up, as a U-boat |
| OARLOCK | U-shaped device on a boat. |
| NERISSA | Steamer sunk by a U-boat in 1941 |
| LORIENT | Brittany seaport that housed a U-boat base in WWII |
