1: Flower, large one, set up outside (5)
4: Northern state nominates radical (9)
8: Write to Dee about American the French roughed up (7)
9: Extend a term of imprisonment (7)
10: Void three stones (5)
11: Rascal and wuss taking week off (3)
12: Come round again about dog (5)
15: We hear you require complete articles for this royal thriller. (7,6)
17: Paraphrasing 'A Certain Sport': 'Wait till next year!' (13)
20: Sound frequently killed (5)
22: Feel sick from crack? (3)
23: Upon reflection, move a houseplant, one requiring lots of liquid? (5)
25: Arguments about a couple of arcane taxes (7)
27: Field of fruit trees resulting in poor Chardonnay (7)
28: It's initially recording automobiles speed, leading to charge (5,4)
29: Improve me back end (5)