Keep a Word, Delete a Word

Buzz! It’s Evel Knievel (until now I thought it was Evil also!)
evil trick

trick pony

Pony Express

express consent

Express Yourself

Yourself Storage

Storage compartment

secret compartment

Secret Treaties

Peace treaties

Peace Frog

Frog march

Frog legs

Legs Diamond

baseball diamond

Diamond Anniversary

Neil Diamond

Diamond mine

Gold mine

Gold watch