خَطَبَ أَسَدٌ أَمَامَ الْجُمْهُورِ.
A lion addressed the audience.
Public speech is a human act, so “lion” is being used for a courageous person. The analogue term is stated, while the action of addressing an audience supplies a clue against the literal sense.
In an explicit metaphor the transferred term is based on resemblance. When literal meaning remains equally plausible without a clear clue, avoid overconfident classification.