1) Shrum for all weathers
2)Knowledge with half a Norfolk snail
3)Beak - unusual that is to say
4)Little and big with a light beam
5)Bond man has experience
6)Amplifier by waters edge say
6 suggests Marshall, where Marshall is a manufacturer of guitar amplifiers and marsh is, well, a marsh....
There are a number of comedians named Marshall, but are any of them sufficiently famous?