2: Inspect gold dust without refining initially (5)
3: Partly indicates progress of undergraduate (2,1,6)
4: Venomous enemy lurks in Caspians (3)
5: Medicine was our connection, we hear (7)
6: Press or key source of metal (4,3)
9: Prom couple steals crown from teen dress up (5)
11: Bend in the middle and wind back (3)