Leisure facilities where one can get high, and very anxious? (8,5)

I believe the answer is:

climbing walls

I believe this is a double definition.

'leisure facilities where one can get high' is the first definition.
(facilities in which one can climb to a height)

'very anxious?' is the second definition.
(someone said to be 'climbing the walls' is anxious)

'and' is the link.

I've seen this clue in The Independent.

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