Moderate a true boiling heat (11)

I believe the answer is:

temperature

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'heat' is the definition.
The answer and definition can be both human attributes as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'moderate a true boiling' is the wordplay.
'moderate' becomes 'temper' (synonyms).
'boiling' indicates an anagram.
'true' is an anagram of 'ture'.
'temper'+'a'+'ture'='TEMPERATURE'

Can you help me to learn more?

(Other definitions for temperature that I've seen before include "Degree of heat" , "Degree of hotness" , "Measure of heat" , "Measure of warmth" .)

I've seen this clue in The Daily Express.

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