A man who pays too much attention to his clothes and personal appearance

One word substitute is Dandy.

Snob: a person with an exaggerated respect for high social position or wealth who seeks to associate with social superiors and looks down on those regarded as socially inferior.
Duffer: an incompetent or stupid person
Dandy: a man unduly concerned with looking stylish and fashionable.
Licentious: promiscuous and unprincipled in sexual matters.