1) Also-ran at Aqueduct 2) Big-A dog 3) Cheap racehorse 4) Flatware factory worker 5) Flatware finisher 6) Metal worker 7) Metalworker of a sort 8) Poor racehorse 9) Second-rate horse 10) Skilled worker 11) Trained worker 1) Electroplater 2) Nag 
• (n.) A horse that runs chiefly in plate, esp. selling-plate, races; hence, an inferior race horse. • (n.) One who plates or coats articles with gold or silver; as, a silver plater. • (n.) A machine for calendering paper.
Horse which usually runs in selling races.
Plat'er noun One who plates or coats articles with gold or silver; as, a silver plater . 2. A machine for calendering paper. 
[n] - a skilled worker who coats articles with a film of metal (usually silver or gold)
An operating unit which electrolytically applies zinc, chrome or tin to black plate.
noun a skilled worker who coats articles with a film of metal (usually silver or gold)