1 down. Tricksy unreal chap concealing a treasure, ultimately? 10 letters.
2 down. Work for overseas employers? It supports Home Office functions. 5-3 letters.
3 down. Broadcasting, say? Head of BBC upset about end of fine series. 6 letters.
4 down. Support rat-catcher not using a piano. 4 letters.
5 down. Cuts song penned by associate of Z Malik? 10 letters.
6 down. Transport company, excellent in two directions, seen around outside. 3 letters and 5 letters.
7 down. Church welcoming British and French playwright in Germany. 6 letters.
8 down. Arab leader in revolutionary memoir I’m editing. 4 letters.
14 down. True, a ham is struggling, being this? 10 letters.
15 down. Wife’s confused, not a right nag? 5 letters and 5 letters.
17 down. Gets hot without rising draught in convents. 8 letters.
18 down. Article about student in University course mostly taken up and expanded. 8 letters.
20 down. Intervene, with second recording in the can. 4 letters and 2 letters.
21 down. Robust articles deleted during part of weekend. 6 letters.
22 down. Point succeeded in competition. 4 letters.
23 down. Christmas: last in cricket team still missing? 4 letters.