Possible Clues:

• Decoration shimmeringly glistens at the centre
• Sparkly yuletide decoration
• 14ac could design decoration
• Tree hanging
• Show can almost be bought
• Scot in Selkirk guards worthless material
• Sparkly threads
• It hangs around trees
• Lets in model for a little bit of glitz
• Silent devastation found around glitzy Trim