Criticise demure article being presented in bright colour? (9)
I believe the answer is:
reprimand
'criticise' is the definition.
(reprimanding is a kind of criticising)
'demure article being presented in bright colour?' is the wordplay.
'demure' becomes 'prim' (I've seen this in another clue).
'article' becomes 'an' (indefinite article).
'being presented in' is an insertion indicator.
'bright colour?' becomes 'red' (red can be a bright colour).
'prim'+'an'='priman'
'priman' inserted within 'red' is 'REPRIMAND'.
(Other definitions for reprimand that I've seen before include "Severe reproof" , "Tick off - carpet" , "telling off" , "Official scolding" , "talking-to" .)