A more thorough explanation:

Definition: A middleman is someone who acts as an intermediary or agent between two parties. This can be a dealer, such as a wholesaler, who buys products from producers and sells them to retailers or consumers.

Examples:

• A clothing manufacturer sells their products to a wholesaler, who then sells them to retail stores. The wholesaler is acting as a middleman between the manufacturer and the retailers.
• A real estate agent helps connect buyers and sellers of properties. They act as a middleman to facilitate the transaction.

These examples illustrate how a middleman can help connect two parties and make a transaction smoother. Without a middleman, the producer and retailer or buyer and seller may have difficulty finding each other or negotiating a fair deal.