The term 'friendly leader' can be broken down into two crossword solutions: ECO (3 letters) and USER (4 letters). ECO stands for 'ECOLOGICAL' and USER stands for 'USER-friendly'. A friendly leader is someone who is both ECOLOGICAL and USER-friendly. They are conscious of the environment and strive to make their products and services as easy to use as possible. They also have a friendly attitude towards their customers, employees, and other stakeholders.