CLEAR is not Pre.
CLEAR is "skip waiting in line for a person to look at your ID and boarding pass". That's it. CLEAR by itself still sends you into the unpack-your-bag, take-off-half-your-clothes, body-scanner experience.
If you want to leave things in your carry-on, stay fully dressed and use the metal detector, you still need Pre (or another program which grants membership in Pre). CLEAR does not give you Pre.