fashion plate fashion plate /ˈfæʃən pleɪt/

noun

1. A plate illustrating the latest fashion in dress  ( fashion plate )
   a plate illustrating the latest fashion in dress
   
2. A man who is much concerned with his dress and appearance  ( beau [Archaic] , clotheshorse [Informal] , dandy , dude [Informal] , fashion plate , fop , gallant [Archaic] , sheik , swell [Informal] )
   a man who is much concerned with his dress and appearance