1: Top of sports car the French painted on time is deep red (7)
2: Stayed only a moment at lewd Western with titillating beginning? Just the opposite! (5)
3: Cloth arrived by air after 50 hours (9)
4: Sit on marsupials and rats tail (5)
5: Spasm set in after mothers had a little something to chew (9)
6: Proper to have a little sex? This gives a slanted view (5)
7: You audibly ram partner (3)
8: Dangle South American flags halfway (7)
12: Goes bad and accepts never-ending abuses of the system (5)
14: Utter poppycock! He was a Dutch painter (5)
16: Lily Tomlin's character: teen siren runaway (9)
17: Harm from dent encompassing front of exterior trim (9)
18: Christo redesigned Big Bird (7)
21: Soundly folds belt, does evening wear (7)
23: Some barbarians turned up for money (5)
24: He's not joking, it's completely lawless. (2, 3)
25: Ball mislaid? Caned (5)
27: Cronkite, Bradley, and Safer's first network (3)