Heating stoked coal on one fire almost turning cold (9)
I believe the answer is:
calorific
'heating' is the definition.
Both the definition and answer are adjectives. Perhaps there's an association between them I don't understand?
'stoked coal on one fire almost turning cold' is the wordplay.
I cannot quite see how this works, but
an anagram of 'coal' is 'calo' which is within the answer.
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
'cold' could be 'c' (eg on taps) and 'c' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for calorific that I've seen before include "for heating" , "generating heat" , "Heat-generating" , "food has such value" .)