Idiots will return to such hot spots (4)

I believe the answer is:

spas

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'hot spots' is the definition.
(I've seen this in another clue)

I can't explain the rest of the clue.

(Other definitions for spas that I've seen before include "Bath and suchlike" , "Mineral springs" , "Health resorts near springs" .)

I've seen this clue in The Irish Times.

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