| Rating | Solver | Clue |
|---|---|---|
| ELL | Pipe bend | |
| ELBOW | Pipe bend | |
| TRAP | Pipe bend | |
| CURVE | To bend; to crook; as, to curve a line; to curve a pipe; to cause to swerve from a straight course; as, to curve a ball in pitching it. | |
| SEAL | An arrangement for preventing the entrance or return of gas or air into a pipe, by which the open end of the pipe dips beneath the surface of w... | |