Slim Sword That Also Describes Someone’s Wit

Puzzle 12 of Animation Pack

Question is: Slim Sword That Also Describes Someone’s Wit

and the answer is: RAPIER

Word Meaning:

RAPIER — A slender, straight, sharply pointed sword (double-edged, single-edged or edgeless), designed predominantly for thrusting; used during the Renaissance period of Europe for civilian duelling

Definitions from Wiktionary.