Related Clues:
- Goes south?
- Loses zip
- Declines in the center
- Mind, in a way
- Droops like an old sofa
- Droops in the middle
- Needs firming up
- Sinks in the middle
- Takes a nosedive
- What a heavily laden clothesline does
- Becomes less taut
- Gets less firm
- Shows wear, as a couch
- Really sinks in
- Gives under pressure, but not entirely