Wiktionary
claybed
n. A bed of clay.
Usage examples of "claybed".
One enemy was perennial: the brickburners' children, who lived by the claybeds and were despised by collegers and townies alike.
Last year Lyra and some townies had made a temporary truce and raided the claybeds, pelting the brick-burners' children with lumps of heavy clay and tipping over the soggy castle they'd built, before rolling them over and over in the clinging substance they lived by until victors and vanquished alike resembled a flock of shrieking golems.
She would have given anything for a day with Roger and her Oxford ragamuffin friends, with a battle in the claybeds and a race along the canal.
It wasn't like the battles in the Oxford claybeds, hurling lumps of mud at the brickburners' children.