Can anyone help.  I would like to enter a benched show later this year.  I've never been to a benched one before.  What do I need to know/take?  Do I need a cage?  Do I need a special lead to clip her onto the bench?  Help

You need either a benching chain (which clips on a ring in the bench)
and a blanket.
Or if your dog feels more comfortable a benching cage and blanket.
One thing that's important is cage size you need to know that your cage
will fit your dogs breed benching size.