Limited general knowledge - and copious use of Google - might enable those few who wish to do so, to identify 31 operas/operettas, one for each day of the month. Sadly there is only one mention of football and none of referees. Supply the definite articles as appropriate.
1. Andalusian coiffeur.
2. Larcenous bird.
3. Lepidopterous female.
4. Number 3's ruler.
5. WCWC.
6. Science base OM.
7. Fishy Prince Consort.
8. A "monumental" virtue.
9. Divers for oysters.
10. "It's Mr Mackay's go now, Fletch."
11. A warning shout - even in women's football.
12. Sly petite fox.
13. Lavatorial hurrah D Debussy's Sea tie-up.
14. Defect in an expensive stocking.
15. Mountain top: blast!
16. Reddish blood.
17. River treasure.
18. Jack (or was it Kiki?) flogged a rodent.
19. Neither pa, ... ...
20. Bill, do spill the beans!
21. I'd appear at home in Alcoholics Anonymous.
22. Ee. Matey Harry's son.
23. Eh? Lunch? lug D Offalpuddle.
24. What t'actor from Yorkshire hopes his film will win at t'awards ceremony in t'USA.
25. A pair raced Dororthy.
26. Long fish found treasure - a blue politician.
27. Pub stool newlywed.
28. Mr Rolls and Mr Royce.
29. Enchanted Champagne glass.
30. KLM Pilot?
31. Tricky Dicky's Oriental visit.