The crossword solution for the term 'Pound Alternative' is STAR, which is a four-letter word. STAR is an acronym for 'Stablecoin Tether Alternative Rate', which is a cryptocurrency that was created to provide an alternative to the popular cryptocurrency Tether. It is designed to be a more stable and secure form of digital currency than Tether, and it is backed by a basket of fiat currencies and other cryptocurrencies.