Most flamboyant cream clothing foolhardy? (8)
I believe the answer is:
brashest
'most flamboyant' is the definition.
(most brash)
'cream clothing foolhardy?' is the wordplay.
'cream' becomes 'best' (I've seen this before).
'clothing' indicates putting letters inside (some letters cover up or clothe others).
'foolhardy?' becomes 'rash' (synonyms).
'best' enclosing 'rash' is 'BRASHEST'.
(Other definitions for brashest that I've seen before include "Most brazen" , "Flashiest and loudest" .)