The term 'Gate Securer' is a job title that refers to someone who is responsible for the security of a gate. The crossword solution for this term is 'LATCH', which is a device used to secure a gate or door. A LATCH is typically made of metal and is designed to be opened and closed with a key or other unlocking mechanism. It is an important part of gate security, as it prevents unauthorized access to the area behind the gate.