Cryptic crossword No 3,886

Across

1. Produce backup in the middle of ASDA (4)
2. Type of WMD in Michael Crichton's debut novel (8)
3. Parts of Montreal a modernist rebuilt with reused materials (15)
4. Reporters photographs turned into slides (6)
5. Pair of 45s initially hurt band, yet touring (6)
6. One charged in ex-colony becomes the concern of the whole country (8)
7. Ugly faces in coffee shops (5)
8. Container for fire (4)
9. Old person crying about how to have a similar relationship (15)
10. Stacks of herbs added to crust of appetiser (8)
11. Bird call interrupted by an American (6)
12. Too bad, Wales lost (2,4)
13. Hesitation among Zulu regiment leads to African losses of the highest order (8)

Down

1. Priest imprisoned in roof at hermitage (6)
2. Two dwarfs with something to quaff (4)
3. Takes care of heading away goals (4)
4. Score of laws being broken in quiet, trendy, temples (6,2,7)
5. Buffet user leaned in (10)
6. Against worker joining union, essentially (4)
7. Atlas of the ocean? On the contrary! (8)
8. Brothers rank above family (5)
9. Without hesitation, contemptuously replacing "King" with "Charlie" (10)
10. Eat in German city (5)
11. Advance reviews take even longer (8)
12. British Museum in real trouble developing bugs (6)
13. Garden tools caught in shower (4)
14. Ness curtailed criminal scheme (4)
15. Financial command centres protecting gold standard (4)