Supermarket sections (6)
I believe the answer is:
'supermarket sections' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for aisles that I've seen before include "Lassie (anag.)" , "Church corridors for lassie" , "Total disorder" , "Passages between rows of seats" , "Supermarket sections" .)