WORLD’S SMALLEST, HARDEST CROSSWORD

ACROSS 1. Thoroughfare (4) 5. E. Asian citrus tree (4) 6. A horse (sl) (4) 7. Anglo-Saxon slave (4) DOWN 1. A ptarmigan (4) 2. Not theirs (4) 3. Muslim summons to prayer (4) 4. A stylish man (4) Yesterday’s solution ACROSS: 1 Huss. 4 IR. 5 Pb. 6 Soya. DOWN: 1 Hiss. 2 Ur. 3 Soba. 5 PY.