Hill utterly glowed as a result of twisting (7)
I believe the answer is:
torsion
'twisting' is the definition.
(I've seen this in another clue)
'hill utterly glowed as a result of' is the wordplay.
I cannot really see how this works, but
'hill' could be 'tor' (tor is a kind of hill) and 'tor' is present in the answer.
'of' could be 'o' and 'o' is located in the answer.
'as' could be 'in' (I've seen this in other clues) and 'in' is present in the remaining letters.
A single letter 's' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for torsion that I've seen before include "White-berried parasite" , "Tortuous and twisted shape or position" , "The act of twisting" , "Twisting force" , "Twisting action" .)