Features of some stadia

DOMES

Architectural covers that might shield fans from rain at certain sports venues.

The clue "Features of some stadia" points to "DOMES" because many large sports venues, like the Mercedes-Benz Stadium or the Tokyo Dome, have dome-shaped roofs. The word "stadia" is just the plural of "stadium," so it’s hinting at a common architectural feature found in these places. No wordplay here—it’s a straightforward definition clue where the answer is a literal characteristic of certain stadiums.