tackle

(American football) grasping an opposing player with the intention of stopping by throwing to the ground

(American football) a position on the line of scrimmage

it takes a big man to play tackle

gear used in fishing

gear consisting of ropes etc. supporting a ship's masts and sails

the person who plays that position on a football team

the right tackle is a straight A student

seize and throw down an opponent player, who usually carries the ball

put a harness

harness the horse

accept as a challenge

I'll tackle this difficult task