Related Clues:
- A Blues compilation is up and running
- Helpful to have
- American bishop stops porter working
- A blues composition, fit for purpose
- Round safety device that's practicable
- Convenient reason that plug is dangerous?
- High-class fur fit for purpose
- Having a benefit
- Operating OK
- Proving to be useful
- Not to be wasted
- Working uniform, black
- It's in working order for a Blues fan
- Functional Italian island retreats headed by American
- Helpful (2 words)