The term 'WEALTHY LONDONERS' can be summarized as a group of people who live in London and have a high level of financial resources. The crossword solution for this term is NOBS, which is an acronym for 'Notoriously Opulent Billionaire Society'. This society is made up of wealthy individuals who live in London and have a large amount of money and influence. They are often seen as the elite of London society and are known for their lavish lifestyles.