A highly witty play filled with double meanings is meant to appeal to an audience that is

The correct answer here is figuratist audience. The figuratist is a person who is a critical thinker and uses language in innovative and often witty and colorful way. That is why this kind of play would appeal to this kind of audience who enjoys word games and double meanings which induce many comical elements. The comical effect is often the result of a misunderstanding produced by the double meanings. The opposite of a figuratist is a literalist who views everything literally.