2: Embarrassed when a graduate took off (7)
5: Animal hiding in abattoir (3)
7: Small room leader of orchestra needed for instrument (5)
9: Limbaugh, getting into cable, is liable to be overwhelmed (9)
10: Get rid of former spouse on passing train (5)
11: Worthless even when recycled (3)
12: Iridescent stone contains quirk having to do with vision (7)