Origin of neuralgia found in moving dry fuel in cold (10)
I believe the answer is:
unfriendly
'cold' is the definition.
('unfriendly' can be similar in meaning to 'cold')
'origin of neuralgia found in moving dry fuel in' is the wordplay.
'origin of' says to take the initial letters.
'found in' indicates putting letters inside.
'moving' indicates anagramming the letters.
The initial letter of 'neuralgia' is 'n'.
'dry'+'fuel'+'in'='dryfuelin'
'dryfuelin' anagrammed gives 'ufriendly'.
'n' going into 'ufriendly' is 'UNFRIENDLY'.
(Other definitions for unfriendly that I've seen before include "Aggressive" , "Hostile" , "Disagreeable" .)