Related Clues:
- Unit of work
- Lots have ability to appreciate music, showing a measure of effort
- Work unit requires a lot of attention
- Amount of work divers are anxious about (but not at first)
- Unit for measuring work effort
- Worker's effort needing a lot of attention
- Work period given attention by a large number
- Lots of notice for this amount of work
- Work unit coming to no harm potentially without uniform