Claire Rayners, n. — Green’s Dictionary of Slang

Claire Rayners n.

also Claires

[rhy. sl.; ult. UK agony aunt and novelist Claire Rayner (b.1931)]

a pair of trainers.

1998		R. Puxley Fresh Rabbit.
1999		Indep. Rev. 21 June 2: The downside is seeing a couple of senior managers in combat fatigues and chunky claires.