The first; introductory (9)
I believe the answer is:
inaugural
This clue is a double definition.
'the first' is the first definition.
(I've seen this before)
'introductory' is the second definition.
(I've seen this before)
(Other definitions for inaugural that I've seen before include "President's address" , "Of an opening ceremony" , "It may be delivered" , "Introductory" , "Of a speech made on taking office" .)