Ghastly court order (6)
I believe the answer is:
direct
'order' is the definition.
(I've seen this before)
'ghastly court' is the wordplay.
'ghastly' becomes 'dire'.
'court' becomes 'ct'.
'dire'+'ct'='DIRECT'
(Other definitions for direct that I've seen before include "Straight - guide" , "Straightforward; control" , "Give travel guidance" , "Following the quickest and shortest path" , "Straightforward, frank" .)