[The Squatter of Amon Rûdh]

You're spot on. The missing part of the clue is a driver's name. Take your pick between Graham and Damon.

1: NAROG Shot and fled up to the water
2: ARMINAS Farm in a southern land hides one worth hearing
3: RINGWIL Flower's deranged smirk on tree? Not half!
4: GLAURUNG Nag swallows line on golden ladder: it's a hot one
5: OATH OF FËANOR Round on father of a terrible promise
6: TAUR EN FAROTH Wood's awful threat for a French one
7: HILL OF SPIES Driver of Smiley's people that girl forgot.
8: R King's call received by two men
9: ORODRETH Herd root around for fallen leader
10: NEITHAN Wronged outlaw replaced bad boss
11: DEBATABLE LAND Questionable country bordering on hostile

Two quick points: I won't be around now until Sunday and I'm not completely satisfied with my clue for 8, which might need rephrasing if nobody gets it soon.