1.
M ASTER SAMWISE - A Time Lord, a fool? He chooses.
2.
E - Earn ill an elvish title, but outside the youngest asks: he fairy enough?
3.
R INGBEARER - Engulf a dubious panda for one who's missing one.
4.
I NCANUS - In the south, the pages could say what Tolkien got.
5.
A RAGORN - Haughty? Not entirely: say rather he knows where he's going.
6.
D WARF - Not one of the six (or seven?), but of their kind: forget his name and say what he is.
7.
O - Born green and grey: one to his name, but whence the other? Not just his father's son.
8.
C APTAIN OF THE WHITE TOWER - Son of the last to rule; by title he could sail inland from the Havens, but find only one.
Dangit, I didn't
mean to pinch Ink On Us, but clearly it got stuck in my head.
Boromir is indeed Captain of the White Tower (with the second half of the clue pointing at the White Towers west of the Shire), and Frodo... well, you got it, though the 'er' is the dubious part.
Two to go! You got halfway to #7 already.
hS