‘Tarka gave chase to a rabbit during the next night, bolting it from a hillside clitter of rocks in a hollow at the head of a cleave.’

This seems a variant of ‘clatter’ and you can imagine rocks and scree pattering and clattering down the hill with an otter in chase of a rabbit.

Source: Henry Williamson, Tarka the Otter: His joyful water-life and death in the two rivers, illus. C.F. Tunnicliffe (Harmondsworth: Puffin Books, 1976 (1927)), p. 130