To clean a trad route, follow these steps:
1. Remove any removable gear.
2. Use a brush to clean dirt and debris from the cracks and holds.
3. Ensure the route is safe and free from loose rocks or debris.
4. Leave the climb as you found it, without leaving any trace of your presence.
Cleaning a trad route involves removing gear, brushing away dirt, ensuring safety, and leaving no trace behind.