Related Clues:
- Caked-on dirt
- Mild expletive from martial arts expert about right
- Mend (e.g. socks)
- Relative heads for Rogue Nation shoot!
- 'Aw, nuts!'
- Tend to a holey 32-Down
- Gross muck
- Mend with thread
- Make sock holes disappear
- "Oh, shucks"
- "Aw, shoot!"
- Save socks, in a way
- Sew a sock hole
- Repair holes by sewing
- Filthy buildup