1: Sixpence for big cheese? (1.1.1.)
3: First and most powerful male (5)
6: Cheer supporting blue automaton (5)
7: Call initially communicates real yearning (3)
8: Chicago hoodlums capturing 1,000 squirrels (9)
10: Bite and flip over -- one way to win a wrestling match (3)
11: Containers holding top-grade instruments (5)
14: Material from N.Y. - Long Island (5)
15: Perfect counter-spy equipment (3)