After solving the following crossword, you'll find five letters that stand out from the rest. Combine them to find the solution to this puzzle. Hint: it's something you'll need to succeed at this.
1. Word with wear, take, or stand
2. Roast lightly
3. Cocktail with cognac and orange liqueur
4. Acceleration unit
5. Island off Newfoundland's Avalon Peninsula
6. Catch some rays
7. Part of a plot
8. Word with tape or symbol
9. In short supply
10. Capital ____
11. Measures of petrol
12. Storage devices
13. Cancel out
14. Casino pastime
15. Steal
16. Top up
17. Paved area
18. Went to bed
19. Up to the task
20. Sharp blows
21. Cultivation
22. Climber's challenge