50 Type of fishing boat (not a trawler)
The break is a 4 letter word as in the African Great _ _ _ _ Valley
Put this "break" inside a three letter colour used for a Communist which is reversed. The fishing boat name can also be a shiftless person.
Yes, definitely sorted now. Thanks to everyone for their help today. I had no idea what that particular thing was until today - for years I lived near a pub with that name, and had no idea what it was! You learn something new every day!