Possible Clues:

• Sloping channels or slides
• Skydiving needs
• Paratroopers' gear
• By the sound of it, fires a shot by inclination
• They're inclined to be for the run-off
• 'Passages inclined to be what one fires at, by the sound of it (6)'
• Sky divers' needs
• Inclined channels
• Rodeo sights
• Board game conduits