Reviewed the cooling of human culture (10)
I believe the answer is:
ethnologic
'reviewed' is the definition.
The answer and definition are not the same part of speech. However, adjectives and past participle verbs occasionally define each other.
'the cooling of human culture' is the wordplay.
I cannot really see how this works, but
an anagram of 'the' is 'eth' which is within the answer.
an anagram of 'cooling' is 'nologic' which is within the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for ethnologic that I've seen is " Relating to study of various peoples".)