An acting scrum-half is a rugby player who temporarily acts as the scrum-half, due to the regular scrum-half's unavailability, due to injury or sin-binning.
you feed from the left of the team that the scrum is awarded i should know i am a scrum half
Divan Serfontein
The 1st England scrum half was Josh Young
Prop forward Scrum half
scrum-half
Conor Murray (Ireland)
Three forwards: Prop, Hooker, Prop. They will form the three man scrum. Four Backs: Scrum Half, Fly Half, Centre, Winger, Winger. Wingers also act as Fullback.
link between the forwards and the backs.
Amy Day - Scrum half
in rugby union the scrum half is the one who passes out of the back of the scrum and rucks and mauls. they can pass the ball very long distances and are usually quite small. to be honest i dont really know as i am a prop so this is a general description. feel free to change this answer(i'm sure you were going to anyway)
Where he made his mark at the World Cup was scrum-half.