Solutions A river in Hades whose water when drunk made the souls of the dead forget their life on earth has 4 entries with similar clues
- 4-letter words
- styxOne of the nine rivers in the underworld over which Charon ferried the souls of the dead
- 7-letter words
- requiemMass for the souls of the dead
- 11-letter words
- tennisclubstheir members presumably try to improve their services
- 19-letter words
- champagne-socialistSomeone whose lifestyle belies their professed radical politics