1: Start reducing salt? (3)
3: Wooded hillock forming part of Arthur's territory (5)
5: Fill-in professional almost rewrote the column (5)
6: Looks like an eyesore, sounds like an eyesore (3)
7: This is truncated, or the end's off (9)
9: Walesa still embodies how Nobel Laureates soar? (3)
10: ... but go oil crazy in snow house (5)
11: Strap, though short, has hanger's heart (5)
12: Child, bask by the sound (3)