Opening statement in court I don't fancy (12)
I believe the answer is:
introduction
'opening statement' is the definition.
(eg opening of a book)
'in court i don't fancy' is the wordplay.
'fancy' is an anagram indicator.
'court'+'i'+'dont'='courtidont'
'courtidont' with letters rearranged gives 'troduction'.
'in'+'troduction'='INTRODUCTION'
(Other definitions for introduction that I've seen before include "Preliminary presentation" , "Foreword" , "Start" .)