Cryptic crossword No 3,922

Across

1. Islamic tail-ender involved in devastated Somme (6)
2. Five, for example, an eschewer of animal products (5)
3. Struck dumb, hat resulted in messy conditions (3,4)
4. Weak-bladdered, not first in Europe, perhaps? (9)
5. No, I club senseless the little beast (4,3)
6. Guard returns feeling sore (3,3)
7. Had elected to cover chart-topping female? (5)
8. Is the foundation beneath stories? (9)
9. Each male child is one (6)
10. Excitedly nail a grub for East European (9)
11. Passed over and deceived? (7)
12. Large vehicle gets statuette (5)
13. "In plan form?" chimes cat, confused (9)
14. Natural site hides mountains (5)
15. Core of Church follows German City (7)
16. Smother fits? Back to the French! (6)

Down

1. Prepare for punishment? Ben leaves for Channel port (5)
2. Richard, oddly cold in Fife? (5)
3. Cardinals weird scene behind artist Tracey (9)
4. Patron Saint of Marks & Spencer? (7)
5. Slightly burn part of missing element (5)
6. Bullfighter in form at a dormitory? (7)
7. C of E worshippers scaling an arrangement? (9)
8. Be unfeeling - cause no feeling? (6)
9. Costs of where umbrellas go in the rain? (9)
10. Can't be famous (7)
11. Baked produce contains one hundred - and fifty - for a laugh (6)
12. Send mad - called in the river (7)
13. To take for granted amuses strangely (6)
14. Brother James? (5)
15. Noted road re-routed for personal hygiene (9)
16. Sharpen way - it's true! (6)