1: Vicar regularly outdated technology (1.1.1.)
2: One final, huge Greek goddess (3)
3: Prig had ma conceal midriff (9)
4: Navigate by terse directions (5)
5: Oak's first seen on the first of May with its leaves out (5)
7: Article missing from European's sources (5)
8: A complex surprise (5)
10: Nothing we have to pay (3)
11: I am reported to leer (3)