1: Number One in facetiousness (3)
2: Road without a pole (4)
3: Confined bear without a trade (9)
4: Frost over mid-January during epic exploit (3,2)
5: Black gets closing party (5)
7: Tarka beheads scoundrel (5)
8: This is always resplendent, adorning heads (5)
10: Tweak with wrong end of a pin (3)
11: Reportedly is nostalgic for wife (3)