Coach gets fellows to hill (6)
I believe the answer is:
mentor
'coach' is the definition.
(I've seen this in another clue)
'fellows to hill' is the wordplay.
'fellows' becomes 'men' (fellow can mean a man).
'to hill' becomes 'tor' (tor is a kind of hill).
'men'+'tor'='MENTOR'
'gets' is the link.
(Other definitions for mentor that I've seen before include "One who steers" , "One guiding" , "Truster advisor" , "He advises" , "Wise and trusted adviser" .)