clitter

verb

1. To clatter lightly; to make a soft rattling noise.

   “Howard […] was even more aware of something else. A clittering sound. It was coming from behind him, and it was getting closer.”

noun

1. (countable, uncountable)Loose stones on hillsides deposited by weathering.

   “A ‘clitter’ or ‘clatter’ is a mass of boulders: it may be in the nature of a scree at the foot of the parent rock, or it may be more or less far removed from any rock exposure to which its origin can be directly attributed.”