Crossword Genius

Bath, not the best place to have ice cream? (3,3)

Ross

I believe the answer is:

hot tub

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'bath' is the definition.
(type of bath)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for hot tub that I've seen before include "Relax here in warmth" , "Jacuzzi" , "bubble bath" , "bathing facility" , "Outdoor bath" .)

I've seen this clue in The Telegraph.
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