"___ cerveza, por favor"

UNA

Think of the Spanish word you’d use to order just one of anything at a café.

This clue is a simple Spanish phrase meaning "___ beer, please," where the blank is filled with the word for "a" in feminine form. In Spanish, "una" means "a" when referring to feminine nouns like "cerveza" (beer), so the answer fits naturally. It’s a direct fill-in-the-blank with no wordplay—just basic vocabulary.