Wrongly accepts the French display (9)
I believe the answer is:
spectacle
'display' is the definition.
(spectacle is a kind of display)
'wrongly accepts the french' is the wordplay.
'wrongly' indicates an anagram (I've seen this in other clues).
'the french' becomes 'le' ('the' in French).
'accepts' is an anagram of 'spectac'.
'spectac'+'le'='SPECTACLE'
(Other definitions for spectacle that I've seen before include "presentation" , "Showy pageant" , "Impressive public sight" , "Remarkable sight" , "Picture" .)