Yesterday’s solution:

Acer, ache, acre, arch, archer, areca, cache, cachet, carat, care, carer, caret, cart, carter, catarrh, catch, catcher, cater, char, CHARACTER, chart, charter, chat, cheat, crate, crater, each, etch, race, racer, ratch, reach, react, teach, thrace, trace, tracer, trachea