Clint Bowyer is a little on edge in his NASCAR return. Things are not going according to plan for the retired racecar driver. Nashville Superspeedway has been kind to Bowyer in the past, but early tonight? Not so much. During his NASCAR Cup Series career, Clint Bowyer was a firey racer. He was definitely not one to be quiet on the radio, that’s for sure. His usual personality on the radio has not gone anywhere, by the way. With issues as far as comfort goes in his truck, being able to gas it up, etc., it’s hard. Bowyer doesn’t like it. He doesn’t like how others are racing him, either. He even…