Clog bottoms (5)
I believe the answer is:
soles
'clog bottoms' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for soles that I've seen before include "Fish; bottoms of feet" , "They're always under one's feet!" , "Parts of shoes" , "Undersides of feet" , "Undersurfaces of feet" .)