Hill (3)
'hill' is the definition.
(I know that tor is a type of hill)
This is all the clue.
(Other definitions for tor that I've seen before include "Hill or rocky peak" , "feature of Glastonbury" , "Rising" , "fell" , "(Dartmoor) rocky hill" .)
(Other definitions for nob that I've seen before include "A slangy head" , "A posh gent - c'est bon" , "Aristocrat" , "A slangy person of high rank - c'est bon" , "Person of wealth or high social position" .)