Have a debate is an activity that involves two or more people discussing a topic in order to reach a conclusion. It is a form of argumentation in which participants express their opinions and attempt to persuade each other. The two crossword solutions for this term are SPAR and ARGUE. SPAR is a verb meaning to engage in a brief, vigorous argument or debate. ARGUE is also a verb meaning to present reasons for or against something in a logical way. Therefore, the two crossword solutions for the term 'have a debate' refer to engaging in a brief, vigorous argument or debate and presenting reasons for or against something in a logical way.