CRYPTIC CROSSWORD

ACROSS 1. Make certain nurse changes direction (6) 4. Victorious leader wears unruly beard for part of speech (6) 8. Comedian gets his gear off in cartoons (5,6) 10. Tolerates extremely academic concepts (7) 11. Fish with a shocking reputation? (3) 12. Suffer pain for long? (4) 13. Humorist from Switzerland (3) 14. Arabian prince back in Crimea (4) 17. We can’t even have a snack! (3) 18. Traced over circle in bold design style (3,4) 19. Earlier version of Madama Butterfly? (11) 20. Land of the box office disaster? (6) 21. Dates and locations for tennis matches (6) DOWN 1. Words of support translated by one cute German (13) 2. Slowly start my return, wretched but feeling compassion (11) 3. Hiding in Cairo, cocooned in florid style (6) 5. Most dehydrated priest loses head after first drink (6) 6. Are they set to stop thieves sleeping in? (7,6) 7. Pets, I stress, can become members of the family (11) 9. A heavyweight of the Flat Earth Society? (11) 15. Toss the Spanish up into fortress (6) 16. Give me a rhino without first horn and I’ll give you a woolly sheep (6)