Any help with the following clues would be appreciated please.
9A: A soldier's shift you'd turf to bits T?U? ?? ??T? (4-2-4)
11A: Get on board to start something challenging ????R? (6)
1D: It's a state for the city in stateside ?A?H???T?N (10)
6D: o ooo ooooo? Curiosities, so they are ???????S (8)
Thanks in advance.