Across
1
Append its (anag) – emergency water source (9)
9
Domestic threshold? (5,4)
10
(Old-fashioned) spot (4)
15
Film, human or civil (6)
16
Athlete – and a gun/drug smuggler (6)
17
Scottish sweet – a medicinal dose (6)
19
Boil down (a liquid) (6)
20
Extraterrestrial robot explorer (5)
24
Space – and freedom (5,4)
26
What’s next after adolescence? (9)