Standing straight before court (5)
I believe the answer is:
erect
'standing straight' is the definition.
(I've seen this before)
'before court' is the wordplay.
'before' becomes 'ere' (usually literary).
'court' becomes 'ct'.
'ere'+'ct'='ERECT'
(Other definitions for erect that I've seen before include "Unbowed" , "Found" , "Not having a list" , "Standing vertically" , "Crete (anag)" .)