2733: Balancing act
To 31D an 37A from the 29D 28A, 19A an 14A 1A and 11D a 23A 35D. Across 5 One reeling in buck before breaking into half-concealed grin (9) 12 Father absorbed by belief system covered in Virginia? (9) 15 Partly cauterised organs (5) 16 This requires at least two pieces facing each other (8)