1: We would embrace tightly in marriage (7)

6: 4-down Arias hit high note in some of the lungs (3,3)

7: Old Mongoloid to farewell religious leader (5)

8: Confined bear without a trade (9)

10: Frost over mid-January during epic exploit (3,2)

12: Going after the final piece of puzzle for a very long time (3)

13: Attack raise with no return (3,4)

2: Anger doctor internalizes is more serious (5)

3: Immediately placed in an awkward situation (2,3,4)

4: Implement box for young cat (3)

5: Before much time has elapsed a nobleman takes that over there (5,2)

6: Gold cot in rummage sale (7)

9: Belgian port getting rid of an idiot (5)

11: Aliens set off (3)