Hustle will affect Endeavor, as it's a physical move, not status. Hustle trades some accuracy for more attack power for physical moves, and since Endeavor is physical, it's affected by the ability, although it doesn't get a power boost.
Same goes for Super Fang. You could try a Life Orb Endeavor gimmick set to keep lowering the HP of both you and your opponent, but as I said earlier it's a gimmick and not made for competitive play.
Tl;Dr: Hustle affects Endeavor, but it won't get a boost in attack power