1: Do springs help American author? (3,6)

5: Manager of Shanghai operation is one who is making an impact? (9)

7: Confined bear without a trade (9)

9: Private cabin, say, with space (9)

12: Bird dog devouring bad lad (4,5)

2: Penniless meal is fantastic (5)

3: Consumed, beginning at the end (3)

4: Walesa still embodies how Nobel Laureates soar? (3)

6: Man, what an avant-garde US artist! (3)

7: Mediterranean leaves unfashionable coins? (3)

8: Strap, though short, has hanger's heart (5)

10: It comes to a point everyone heard (3)

11: The time before the first woman (3)