Possible Clues:

• No doubt, if I challenge you to utter it
• Fearlessly, I speak out
• Greek god in time coming under Roman one, perhaps
• Ready as I can be made, probably
• Venturing words
• A ride arranged on express? That's quite possible
• Raised ground always, one might suppose
• Throw down the gauntlet after I turn to speak? That's probable!
• God appearing in single time period? It wouldn't surprise me
• It seems likely jerk is ready to pen article