What is an aerodrome licence?

Could you elaborate on what constitutes an aerodrome licence? I'm curious to understand the significance and requirements behind this document. Specifically, I'm wondering about the purpose of this licence, who is required to obtain it, and what regulations or standards it adheres to. Additionally, I'm interested in knowing if there are any specific steps or procedures involved in the application process for an aerodrome licence. Could you provide a concise yet comprehensive description of an aerodrome licence and its importance in the aviation industry?