Cooling down rioter, fearing collapse (13)

I believe the answer is:

refrigeration

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'cooling' is the definition.
(refrigeration is a kind of cooling)

'rioter fearing collapse' is the wordplay.
'collapse' indicates anagramming the letters.
'rioter'+'fearing'='rioterfearing'
'rioterfearing' anagrammed gives 'REFRIGERATION'.

'down' is the link.
This may not be correct. It may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for refrigeration that I've seen before include "Process of chilling food" , "Act of cooling" .)

I've seen this clue in The Times.

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