Related Clues:
- Marks of approval
- Lousy parasites? Yes and no!
- Sounds of passing time
- Indication of seconds passing
- Parasites get credit for correct answers
- Marks correct
- The right signs - flashes
- Faint sounds and flashes
- They show one's dealt with in seconds
- Marks right
- Credit son getting correct marks
- Checklist marks
- There are 60 in a minute
- Sounds made by, say, grandfather's cane, heading for the back
- Parasitic mites