Possible Clues:

• Halves of diameter
• Spokes; bones
• Veins of insect's wings
• Spokes, for example
• ...broadcast, failing to finish one's lines
• Angle producers
• Spoke repeatedly
• Taking little notice, one involved in religious instruction spoke again and again
• Bones a Detective Inspector found in centre of Ambridge
• I'd come back in the air with them half way across