Possible Clues:

• Demosthenes, e.g.
• Alternatively, either side of a T, in a manner of speaking
• Public speaker delivers moral stories without false smiles
• One might make a kangeroo come back around the pitch, in a manner of speaking
• Does he let out a roar when about to speak?
• One may get a speech or a rise from this
• Bryan, for example
• A rouser or a rise
• One delivering a speech that's partly exploratory
• Person with a public address