Possible Clues:

• 21 across for young man in Belgium
• Flat part of an oar
• Razor or knife
• Barber's accessory
• What might cut a dashing figure?
• Windmill part
• London rail terminus
• Marvel Comics character played thrice by Wesley Snipes
• *Feature of a 24- and 36-Down
• Young man in Belgium is capable of making the cut