Cryptic crossword No 3,690

Across

1. Popular tipple largely unopened after certain event (9)
2. Following setter's departure, John becomes available (2,3)
3. Psst...here could be journalists and more! (3,5)
4. Gang members, macho types, guarding new church (8)
5. Skilled worker from university breaking silence (5)
6. Letters from saboteur, as I anticipated - perpetual adversary? (7)
7. Perhaps joining forces to dismiss temptation (7)
8. Some equals afforded further "equality", worryingly: only leaders (1,3)
9. Famed artwork, X-rated, by George (4,3)
10. Engender actor and peer performing together (9)
11. Australian resident briefly takes final term of Chem 101? (4)
12. Carlyle posturing for all to see (7)
13. Projection occasionally spoiled conclusion of Interstellar (4)
14. For instance, Eric's book The French Girl's Stomach (5)
15. To begin with, ducks have this (4)

Down

1. One's sometimes lucky to have cold fan (6)
2. Unjust treatment as award erroneously given to lousy ale (1,3,4)
3. Bug rock musician picked up (6)
4. Live burying dead, but not sick (4)
5. Short-sleeved shirt left in dump (4)
6. Get rebuffed about nationalist publication of ill repute (6)
7. Attempt orientation to find desert (4)
8. "Ride stud roughly"? That's most colourful (8)
9. Island seen as centrepiece in ascendant experience (4)
10. How food might be cooked in heaven (2,4)
11. Model, "Lizzie", grabbed by bottom and pinched (5)
12. Zero reason initially to stop cat fight; maybe later (8)
13. Agency keeps a sharp claw in European region (9)
14. Complete clip potentially broadcast (5)
15. Abruptly eliminate male to nab gold, constituting dispossession? (8)