22 down. Clue: Oscar's successor in pop (4). I have: P?P?
23 across. Clue: Row splitting party is extremely open (8). I have: ???N?E?T (not sure about the "E").
21 down. Clue: Ambassador's engaged in shoddy work and could get this (3,4). I have: T?? ?A?K. I think "THE SACK". It has HE for Ambassador but can't see the rest of the wordplay.
8 down. Clue: Dart left in suit (4). I have ?L?T and thought FLIT but it seems a bit weak.
13 down. Clue: What eleven wanted with dinner? (4,6). I have: ?I?E ???E?S. Any help would be most welcome.
Thank you all very much. Bubbletub, have you been overdoing the sun bathing recently?
One left; 16 across. Clue: Prince leaving posh car in reverse? Yes (3). I have: Y?H. Can't make any sense of it.