Pell-mell (6-7)

I believe the answer is:

helter-skelter

'pell-mell' is the definition.
(I know that pell-mell can be written as helter-skelter)

This is all the clue.

(Other definitions for helter-skelter that I've seen before include "Fairground slide - confused" , "High spiral slide at fairground" , "In disorderly haste" , "Haphazardly" , "Spiralling fairground ride" .)

I've seen this clue in The Guardian.

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