Complex sentence: Cleavers are primarily used for cutting through "thin" or "soft" bones and sinew and hard vegetables, such as squash, where a slicing blade runs the risk of shattering.
Split into simpler sentences: Cleavers are primarily used for cutting through "thin" or "soft" bones and sinew. Cleavers can also be used in preparation of hard vegetables and other foods, such as squash, where a thin slicing blade runs the risk of shattering.