Order English knight before a court (5)
I believe the answer is:
enact
'order' is the definition.
(I've seen this before)
'english knight before a court' is the wordplay.
'english' becomes 'e' (abbreviation).
'knight' becomes 'n' (chess).
'before' is a charade indicator (letters next to each other).
'court' becomes 'ct'.
'e'+'n'+'a'+'ct'='ENACT'
(Other definitions for enact that I've seen before include "Decree" , "Put into law" , "Play one's part" , "Put into practice" , "Authorize" .)