Related Clues:
- It can aid one's climb to the top
- Climber's need
- Certain unfair advantage
- Advantage at the outset
- Early edge
- Early advantage
- Slight footing
- *Climber's support
- What a slow person may need
- Racer's edge, or the ends of 17-, 23-, 39- and 49-Across, unflatteringly
- What a slow runner may need
- An early advantage for the star ad
- A good beginning using one's loaf
- 'The advantage of beginning ahead of others (4,5)'
- Teacher's sharp boost