Stuck on a few with links to 8a (the answer to which is San Fran) and the theme is the anniversary of the Human Be-In festival
1d Trumpet player's final appearance in 8 area (4) ?R?Y
17 a Broadcast story of 8's mistake (4) F?E?
22a Small, once trendy dog (4) S???
23d Leader in evening newspaper (4) ??H?