cut
劚 centers on the action of cutting, likely with a blade or knife, as suggested by the right-side knife radical.
劚 is a rare character combining 屬 (likely phonetic) and 刂 (knife), suggesting a cutting action. The exact historical development is uncertain due to its rarity.
The left side 屬 looks complex and heavy, while the right side 刂 is a sharp knife. Imagine using that knife to cut through the tangled mass on the left.
For チャク, picture a lumberjack in a plaid jacket (chaku) using a knife to cut wood: jacket -> チャク.