Source : Webster's Revised Unabridged Dictionary (1913)

Upholsterer \Up*hol"ster*er\, n. [A substitution for older
   upholder, in OE., broker, tradesman, and formerly also
   written {upholster}, {upholdster}. See {Upholder}, and
   {-ster}.]
   One who provides hangings, coverings, cushions, curtains, and
   the like; one who upholsters.

   {Upholsterer bee}. (Zo["o]l.) See {Poppy bee}, under {Poppy}.

Source : WordNet®

upholsterer
     n : a craftsman who upholsters furniture