The Frame Hut is shutting its doors next weekend after more than 40 years in town. Owner Edward Clancy said he will miss running the custom-frame store, but business has dropped off too much for him to continue. There are no plans for a new tenant in the storefront at 66 Leonard St . Until the shop closes for good on Saturday, he said, all frames and mirrors are 50 percent off. Clancy will be headed to Photo Quick Plus on Lexington Street in Waltham, where he will do custom framing a few days a week, he said.