Elastic sort of brick? (9)

I believe the answer is:

stretcher

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'brick?' is the definition.
(I've seen this before)

'elastic sort' is the wordplay.
'elastic' becomes 'stretch' (similar in meaning).
'sort' becomes 'er' (I am not sure about this - if you are sure you should believe this answer much more).
'stretch'+'er'='STRETCHER'

'of' is the link.

Can you help me to learn more?

(Other definitions for stretcher that I've seen before include "For transport of the wounded" , "Litter for ill people" , "Carrier for sick/wounded" , "that can carry some cases" , "Frame for carrying injured person" .)

I've seen this clue in The Times.

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