Cryptic crossword No 3,974

Across

1. Low-level scheme crushed by leader of police network (6,4)
2. Flew south to Portugal then east to Germany (4)
3. Tireless Green travelling with energy limited by muscle issue (9)
4. A win, on the other hand… (5)
5. What 18d must do to 24d: prepare first, laboriously toiling with both hands in consequence (3,2,7)
6. Anxiously I peed next in device (9)
7. Powerful explosive gets cold over time, losing energy (7)
8. Before exhausted climax, small, initially hard and perfectly formed (6)
9. Score in some of fixtures ultimately (6)
10. Perfect one’s show (7)
11. The Spanish excited permanently (9)
12. So inspiring to one like 18d (5)
13. Fey paradox! (5)
14. All in he taxed us extravagantly (9)
15. Gloomy being dealt with meagre yarborough (4)
16. 25a, 18’s acceptance speech in three words? (2,2,2,2,2)

Down

1. Estimated patron on the phone (7)
2. Obvious people to make suggestions (9)
3. Nearly time for sweet dreams (5)
4. Virtue of former VP eating at 1 (8)
5. Come to terms with cricket club barndance finally having appropriate clothing (6)
6. Resolution of speed divided by electromotive force (5)
7. Indicated act not accepted (7)
8. One from Punjab, perhaps, bearing quiet suffering (8)
9. My mug lit up with opportunity for lots of exercise (8)
10. Cribbing Hotmail an essentially blatant copy! (9)
11. Controversially Physics not about us being eternally subject to gravity? (8)
12. See 12a
13. Scrambles egg firstly, adding fish in leaves of naartjie second (7)
14. Old Wessex character’s tree planted retrospectively around mainland Britain (6)
15. Pip’s not back, lost in region of Romney Marsh (5)
16. Encourages team (5)