Superhero garments (5)
I believe the answer is:
capes
'superhero garments' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for capes that I've seen before include "Space for cloaks" , "Cloaks or headlands" , "Sleeveless cloaks - promontories" , "may be worn" , "Short cloaks" .)