1: Private entrance in back behind Post Office (7)
2: Ill-conceived encore run for Edward VIII, say (9)
3: Bigoted, ideological extremes in preamble to bill are misguided (9)
4: Certain Pole's one poem (5)
5: Not being particular, Xena and I moved to Connecticut (7)
6: Original North American time precedes 'America Latina' (5)
7: Drive an unusual visitor (7)
9: Doll part, that is (5)
13: Measuring exotic flowers (9)
14: Winner against what French first resisted otherwise (9)
15: Grandma takes Mr. Thalberg to the 'State of Oblivion' (7)
16: China to convert to a biblical place. (7)
17: Body English for a billiards shot (5)
18: Dangle South American flags halfway (7)
20: Poplar is like a writer (5)
21: Drive carefully and live (5)