With 18-Across, colonial-style houses?

The crossword question “With 18-Across, colonial-style houses?” is asking for a word that fits with “ANT” and indicates a type of colonial-style house. The answer is “PL.” When combined with “ANT“, it creates the word “PLANT“, which is a type of colonial-style house characterized by its large, central chimneys and symmetrical facades. Typically made of brick or wood, these houses are commonly found in the northeastern United States and were popular during the colonial period. In addition to the distinctive chimneys, other features of colonial-style houses include dormer windows, shutters, and a front door accented by a small porch or stoop.