ACROSS
1 Split resistor into four terminal leads (4)
3 Star desiccates small objects (8)
9 Boston University to organise most of excavation in African country (7)
10 School revolutionary Asian country about hydrogen (5)
11 The air and climate changed, losing energy, to do with numbers (12)
13 Journalist is working for inventor (6)
15 Pelt church after escape (6)
17 Resistance in devil’s grid is apparent (12)
20 Robot finished covering radius (5)
21 Let room get messy to produce vibration effect (7)
22 After winter blues study, Edward is depressed (8)
23 Inverted central aspect of fungi…
