Pinky,
I think you should talk to him in a frank and gentle manner, one on one, and let him know how you feel. Read Matthew 18:15-20. Jesus says that if a person offends you, speak to him yourself to find out what is going on before you get other people involved. I think if we would all follow this advice, we would have a lot less hurt feelings and misunderstandings.
I wish that everyone who had a problem with my husband (he's a pastor), would talk to him right away so he has a chance to clear up misunderstanding and to apologize if needed. Many people are afraid to talk to their pastor when they disagree with something that has happened. He very well could have been too busy to reply to your e-mail. If he is a true man of God he will strive to include you somehow in his clown ministry. (or he could be a jerk, you never know, pastors are human too, I should know, I'm married to one, luckily mine's no jerk)
I will be praying for you,
Petunia