Temperature is uncontrollable: one coming in makes assessments (7)

I believe the answer is:

triages

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'assessments' is the definition.
The definition and answer can be both acts as well as being plural nouns.
Maybe they are linked in a way I don't understand?

'temperature is uncontrollable one coming in' is the wordplay.
'temperature' becomes 't' (abbreviation).
'is uncontrollable' becomes 'rages' (I am not sure about this - if you are sure you should believe this answer much more).
'one' becomes 'i' (Roman numeral).
'coming in' is an insertion indicator.
'rages' enclosing 'i' is 'riages'.
't'+'riages'='TRIAGES'

'makes' acts as a link.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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