dandy vs fashion plate

dandy and fashion plate both are nouns.

Word	Noun	Adjective	Verb	Adverb
dandy	Yes	Yes	No	No
fashion plate	Yes	No	No	No

As nouns, dandy and fashion plate are synonyms defined as:

dandy and fashion plate: a man who is much concerned with his dress and appearance

Other synonyms of dandy include beau, clotheshorse, dude, fop, gallant, sheik, swell.

dandy (noun)	fashion plate (noun)
a sailing vessel with two masts; a small mizzen is aft of the rudderpost	a plate illustrating the latest fashion in dress
a man who is much concerned with his dress and appearance	a man who is much concerned with his dress and appearance

dandy (adjective)	fashion plate (adjective)
excellent