Quick crossword No 309

Across

1. Children losing heart, failing to develop (6)
2. Nearly all team to miss cut ultimately (4)
3. Northern arts set back in downgrading show (13)
4. Feel unwell part way through fling, resulting in thrashing about (8)
5. Now at one about topic, at last! (2,4)
6. Munitions Command ejected CND, then retracted (4)
7. Giggling girl's denial giving way to levity (8)
8. Honestly! Reasonable as well as traditionalist? Or just blonde and boring! (4,3,6)
9. Set in motion in European circles matter that's chewed over again (6)
10. Freak overturns drum! (3)
11. Bothered more by beginning (6)

Down

1. Half-concealed jungle first sign of Nepalese depression (4)
2. Nuisance! Changing clocks for hours... and all for saving confounded daylight! (8)
3. Drug concerning the ear, informer declared up front (8)
4. Smart clothes for scholars. Note lifted hearts perhaps? (4,4)
5. Accept responsibility for hours led suffering (8)
6. Naked trick, following Europe's lead in limits of measurement system (6)
7. Slime university concocted for breakfast (6)
8. Raving tires small angry men essentially (4)
9. Opt for unconfined Whoop! amid CSE (6)
10. Boundless time understanding repercussions (6)
11. Renewable energy rejects hint of large rise (4)
12. Bad team discipline (4)