Puzzle 3

A guess based on a thought-out calculation.

A tiny bit, a particle.

Baton __; agile sport of majorettes.

Becoming better with age.

Former southern African state; modern-day Zimbabwe.

Hard rubber substance used in baking trays.

Online ID needed to access an account.

Process or key turn responsible for starting a car.

Surgical knives for facelifts.

To put at risk.