This read-only counter tracks the number of ATM CLP0 cells transmitted on this leaf's VCC, the outbound counterpart to cktLeafAtmInClp0Cells but scoped to this specific leaf rather than the whole circuit. This lets an admin see the protected-priority outbound traffic volume for one particular branch of a multipoint tree, useful when different leaves of the same tree carry different volumes (e.g., a video distribution tree where some leaves are actively watched and others are idle). An engineer checking whether a specific leaf is actively receiving forwarded protected traffic from this node would confirm cktLeafAtmOutClp0Cells is incrementing for that leaf.