Related Clues:
- They are hard and make trouble in two directions
- They are driven to join things
- Cock's crest
- Tacks - arrests
- They get hammered
- Barrelful at a hardware store
- Digital display
- Polish targets
- Picture-hanger parts
- Homebuilder's boxful
- Polishing candidates
- Finalizes, with 'down'
- Part of body; hard as them
- Fastens with spikes
- Fixes bridge partnership that's about to weaken