Foot covering (4)
I believe the answer is:
'foot covering' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for shoe that I've seen before include "Plate on horse" , "Footwear - playing-card dispenser - part of a brake" , "Hose (anag)" , "Card dispenser" , "Brogue, for example" .)