The term 'Balancer' can be defined as a person who is responsible for maintaining equilibrium or balance in a given situation. This could include balancing the workload of a team, ensuring that resources are allocated fairly, or making sure that all sides of an argument are heard. The crossword solution for this term is 'Poiser', which is a French word meaning 'to balance'. This term is often used to describe someone who is able to maintain a sense of balance and harmony in a given situation.