He deals with the customers in a very 'professional' way. = He is very 'professional' in dealing with the customers.
a golf/tennis 'professional' [=a skillful golf/tennis player whose job is to teach other people how to play]
I was impressed by the calm and 'professional' way she handled the crisis.
(..) him. He'll be on the air for ABC. l'm gonna impale the son of a bitch with a sharp stick through the heart. We'll lose $ million in revenues. l'll take a contract out on him. l'll hire professional killers. No, l'll do it myself. l'll strangle him with a sash cord. Jesus! l don't think Jensen's (..)1976 Network
(..) statement washing this whole thing off. You, Max, better have answers for those nuts that always come to the meetings. Mr. Beale has been under great professional and personal strain. l've got surprises for you, too! l've had it up to here with your division... and it's annual $ million deficit! (..)1976 Network