Hi CP
Many thanks (once again) for your time and effort - wondered if Neave was correct, and have since found that it is. The Gun maker is an interesting addition to his occupations and made me look again at the 1851 page - one of the census checkers had put one of their infamous big black lines through it, but by magnifying I can now make out that it is most likely to be 'Gun Smith' as opposed to my transcription - thanks for that.
Kind Regards - Dave