1: Four runners usually talk about YMCA in the morning (5,4)
2: Wooden seemed ordinary around Nebraska (7)
3: Be quick to make appearance with instrument (4,5)
4: Polite fellow, but a slippery character (7)
5: Digger protects a Royal worth his salt (7)
6: Unbelievable boast in part of the castle (7)
7: Expel National Service Union leaders and heartbreak will follow (5)
9: Cronkite, Bradley, and Safer's first network (3)
14: Wildly game sycophant heard 16-downs successors (9)
15: Stuff used to make soup with apples - it's boiled (5-4)
17: Hot, current--'Gent' by Coco? Refreshing! (7)
18: Hollywood location less than clean (7)
19: 49 + 51: 101? To start with, that's wrong (7)
20: Kind of sign alphabet linked Italian leader with Fascist (3-4)
21: Annoying ad for toaster design? (3-2)
22: Emergency room stocks one sensitive organ (3)