1: King John's last to find out (5)
2: Later round without an opponent (3)
3: Irately blasted the way things are (7)
4: Uninitiated stoop to finish (3)
5: through old player? (9)
6: Keeps turning nastier (7)
7: Beware of these they show the funny side of the month! (4,2,5)
8: Avoids seeds, pits, nuts (9)
12: Inspects old radical for a moment (5, 6)
14: West abandoned mortals without a spot of confusion (9)
15: Grant authority to gaucho, finally, packing whip for farm animals (9)
18: Eat late, taking in a floozie's new business (5-2)
20: Resistance to change is smart; it's going back in time (7)
23: Character from Greece or the borders of Transylvania (5)
26: In fear of wheat head (3)
27: The time before the first woman (3)