Weaponsmith is a broad term relating to a professional weapon

Weapon

A weapon, arm, or armament is a tool or instrument used with the aim of causing damage or harm to living beings or artificial structures or systems...

 maker. This may refer to sword

Sword

A sword is a bladed weapon used primarily for cutting or thrusting. The precise definition of the term varies with the historical epoch or the geographical region under consideration...

s, axe

Axe

The axe, or ax, is an implement that has been used for millennia to shape, split and cut wood; to harvest timber; as a weapon; and as a ceremonial or heraldic symbol...

s, and any other metal hand-made weapon, though it can also refer to firearms (gunsmith

Gunsmith

A gunsmith is a person who repairs, modifies, designs, or builds firearms. This occupation is different from an armorer. The armorer primarily maintains weapons and limited repairs involving parts replacement and possibly work involving accurization...

s) and any other weaponmaker who builds weapons in a non-industrial (non-assembly line) manner. The weaponsmith would generally have specialized blacksmithing skills.