Possible Clues:

• Angled
• The way the bishop goes on board
• This angle is not a right-angle or any multiple of a right-angle
• Slanting, indirect
• This angle is obtuse or acute
• Devious slash
• Indirect appeal to desolate broadcast?
• Roundabout and ring road of a kind leads to Staffs town, as satnav says?
• Inclined as old boy to spill secrets while talking
• Muscle targeted by side planks