Light from church on hill (5)
I believe the answer is:
torch
'light' is the definition.
(type of light)
'church on hill' is the wordplay.
'church' becomes 'ch' (common abbreviation).
'on' means one lot of letters go next to another.
'hill' becomes 'tor' (tor is a kind of hill).
'ch' after 'tor' is 'TORCH'.
'from' is the link.
(Other definitions for torch that I've seen before include "Set fire to - hand-held light" , "Set alight deliberately" , "Set fire to; electric lamp" , "Small hand-held battery lamp" , "Link" .)