The Collaborative International Dictionary of English v.0.48:

hoofer \hoof"er\ n.
   a professional dancer, especially a tap dancer. [Show
   business slang]
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

hoofer
    n 1: a professional dancer [syn: hoofer, stepper]

Moby Thesaurus II by Grady Ward, 1.0:

69 Moby Thesaurus words for "hoofer":
   ambulator, artist, artiste, backpacker, ballerina, ballet dancer,
   ballet girl, ballroom dancer, belly dancer, burlesque queen,
   choral dancer, chorine, chorus boy, chorus girl, clog dancer,
   conjurer, coryphee, dancer, dancing girl, danseur, danseur noble,
   danseuse, ecdysiast, entertainer, exotic dancer,
   female impersonator, figurant, figurante, foot passenger,
   foot soldier, foot traveler, footslogger, geisha, geisha girl,
   guisard, guiser, heel-and-toe dancer, hiker, hitchhiker, hula girl,
   impersonator, infantryman, jaywalker, magician, marcher,
   mountebank, mummer, musician, nautch girl, paddlefoot, pedestrian,
   peeler, performer, peripatetic, prestidigitator,
   public entertainer, show girl, singer, square-dancer, stripper,
   stripteaser, stripteuse, terpsichorean, trailsman, tramper,
   vaudevillian, vaudevillist, walker, walkist