Display ostentatiously (6)
(Other definitions for parade that I've seen before include "Air - display" , "Row of shops, march" , "Public procession as on St Patrick's Day" , "Show (put on by soldiers?)" , "March-past of troops etc." .)
'display ostentatiously' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for flaunt that I've seen before include "Display ostentatioulsy, brandish" , "Display ostentatiously or boastfully" , "Show off, brandish" , "Display very publicly" , "Expose ostentatiously" .)