Delivered a stemwinder is a phrase used to describe a powerful and passionate speech. It is derived from the phrase 'stem the winder, ' which refers to winding up a clock or watch. The term is often used to describe a speech that is particularly effective in swaying an audience. The crossword solution ORATED is a verb meaning to speak publicly, especially in a formal or impressive manner. Therefore, the phrase 'Delivered a stemwinder' can be interpreted as delivering a powerful and passionate speech.