Quick crossword No 285

Across

1. Naomi might be an Arab (5)
2. Honour East German city backing the French (7)
3. Turning on model takes time (11)
4. Mineral vein contains good deposit (5)
5. Swim teams? (7)
6. Keep watch (7)
7. Get the message out about one pet in cooperative (11)
8. Low revs, regularly spinning, create engine noise (5)
9. Divorce a French couple (7)
10. Lecherous fellow rested a short time (5)
11. Cryptically, he battles to transform a difficult situation (4,3,6)

Down

1. Guard king sleeping under throne (7)
2. Notice about South American oil source (6)
3. French city, part of Italy once (4)
4. Chaos in Helsinki after victory over communist leaders (5)
5. Girl's firm provides entertainment (5)
6. Unbelievably, it is a UN country (7)
7. The European capital is complicated. Prove it! (7)
8. Go round the world on it (5)
9. Pop artist touring eastern monarchy (13)
10. Steal university's selection of Thomas Hardy (6)
11. Cheater upset tutor (7)
12. Tearful when film wins Oscar (5)
13. Stand and deliver (4)