Light from high point above church (5)
I believe the answer is:
torch
'light' is the definition.
(type of light)
'high point above church' is the wordplay.
'high point' becomes 'tor' (a tor is a rocky hill).
'above' means one lot of letters go next to another (in a down clue, some letters go above others).
'church' becomes 'ch' (common abbreviation).
'tor'+'ch'='TORCH'
'from' acts as a link.
(Other definitions for torch that I've seen before include "Source of light" , "A large candle" , "Portable lamp; set alight" , "Small hand-held battery lamp" , "Flashlight" .)