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8d. Agree, setter error I reckon. Labyrinthine = windy (as in winding not blowy). Anagram as Mallyh said rainy in the. Not sure about the I recalled though - can't make anything of it with only 1 I.
I suspect that it's LABRYNTHINE, which seems to be a common mis-spelling of LABYRINTHINE. I'm not sure whether some dictionaries recognise that spelling, or whether it's a mistake on the part of the setter.
LABRYNTHINE is an anagram of "IN THE" + "BL" (the "case" of Blackpool) + "RAINY", minus the letter I ("I recalled"), with "changeable" indicating the anagram and "windy" as the definition.