1: Boxer Max returned, holding heroin, for treatment (5)
2: Dispatches last bits following Saturday (5)
3: Somehow it is clear and practical (9)
4: Rohmer hiding unit of Resistance (3)
9: Farewell from union leader after getting something straight (5)
10: Ordered hoop to conserve mass and energy (5)
11: Man, what an avant-garde US artist! (3)
12: First get a French weapon. (3)