1: They say the headmaster should be guided by this (9)
6: Fill-in professional almost rewrote the column (5)
8: See its violent broadcast? (10,3)
10: Crooner Mel: famous, loveless, suffering (9)
11: Laid off, breadwinner's starting to wing it (2-3)
12: Saint Harry's late news flash (4,5)
16: I went crazy for rope (5)
17: Explosion is bomb's first and last (5)
18: Having a specialized tax status, the result of a visit to an amateur tailor? (9)
19: Religious types taking some time in the morning? (5)
20: Recruit criminal with calligraphy (9)
24: Cook ran; ragout spilled; one might jump to conclusions here? (8,5)
25: Adjust to initially having little juice (5)
26: Two detectives produce a cosmetic (3,6)