"Ineresting that the Self Employed cannot apply for them selves ! It doesnt apply to us , as we do NOT do any kind of chidrens Entertainment , but what does a Children's Entertainer (Magician , Punch and Judy Man , etc) do to get CRB clearance ?"

If you are asked for a CRB clearance then the organisation doing the asking has to provide you with the form. If they are not CRB registered then then they can get an Umbrella Body to submit the clearance on their behalf but they will need to complete the employer's part. The CRB check is actually for their benefit, to show that you are a fit and proper person and they have undertaken due diligence etc.

If you feel you need one anyway the easy way is to do some voluntary work in a school or similar, mine comes courtesy of a befriending project I help with.

In the UK all the Sports Bodies have arrangements for CRB checking (and it's condition of being a licensed coach for many of them) so I wouldn't use any class where the coaches didn't have one.

For children's entertainers then the rule of thumb is to insist (in your contract) that parent's remain present. In all honesty it's almost impossible to entertain a group of kids if you're the only adult in the room "Mister, mister! Johnny feels sick" etc

Steve