I found these online definitions but no definitions of metalsmith.
\Sil"ver*smith`, n. One whose occupation is to manufacture
utensils, ornaments, etc., of silver; a worker in silver.
n : someone who makes or repairs articles of silver [syn:
\Gold"smith`, n. [AS. goldsmi?. See Gold., and Smith.] 1. An
artisan who manufactures vessels and ornaments, etc., of gold.
- A banker. [Obs.]
Note: The goldsmiths of London formerly received money on deposit
because they were prepared to keep it safely.
\White"smith`, n. 1. One who works in tinned or galvanized iron, or
white iron; a tinsmith.
- A worker in iron who finishes or polishes the work, in
distinction from one who forges it.