Related Clues:
- Hold back in doubt
- Border - advantage
- Requisite sharpness
- Border, boundary, rim
- Best by a bit
- Kind of piece in a jigsaw puzzle
- The ends of one's knowledge on the lip
- He who does so is lost, they say
- See 28 Down
- Soul producer
- Cutting-___ (like the latest technology)
- Towards the end, knowledge is on the limit
- On ___ (nervous)
- Living on the ___
- Club losing initial advantage