Reserve small chilled desserts (4)

I believe the answer is:

ices

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'chilled desserts' is the definition.
'ices' can be an answer for 'desserts' (ice is a kind of dessert). I am unsure of the 'chilled' bit.

'reserve small' is the wordplay.
'reserve' becomes 'ice ' (both can mean aloofness).
'small' becomes 's' (abbreviation - e.g. clothes size).
'ice'+'s'='ICES'

Can you help me to learn more?

(Other definitions for ices that I've seen before include "summer refreshment" , "ecorates with frosting" , "Frozen desserts" , "Cold refreshments" , "Kills (slang) - sweets" .)

I've seen this clue in The Times.

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