Outrage, removing cold footwear (6)
I believe the answer is:
sandal
'footwear' is the definition.
(sandal is a kind of footwear)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for sandal that I've seen before include "Light open-toed shoe" , "what may be afoot" , "Openwork shoe" , "Item of footwear" , "One can go on foot" .)