Cryptic crossword No 825

Across

1. One who comes out over a member of a learned society may be described as strange (9)
2. I'd say a crossword definitely has the edge (5)
3. Advanced with caution - it could be hard, snub, pug or snotty... (5)
4. Shrew putting resistance's election slogan into shelter (9)
5. Considers - were there once seven? (7)
6. Dig up constant unknown to philosopher (6)
7. Nod off as Germany rows in (6)
8. Florentine navigator's returning cup, amongst other vices (8)
9. Helium meets anti-helium - impressed (laughed raucously) (3-5)
10. Wet affair? (6)
11. Questioning like a boss? (6)
12. Stable construction that when placed after 25 may be exemplified by O or 27, 25, 6 across, 15, 11, 5, 30, 14 and 2 (7)
13. 6 down 3 after hours to start prayer (3,6)
14. Crow female, for example, almost makes a shrill noise (5)
15. Divine when 15 loses the right (5)
16. Vernonias may be used to put creases in old-fashioned clothes (9)

Down

1. Black and white identifier that's not at frequency ranges (10)
2. News does rid tinker of those who take away gifts (11)
3. Snub inconclusive detailed Manx brief? Not quite (7)
4. News from those most dead? (6)
5. Married boxing 'obby follower - by noon, went to the dogs (8)
6. Clue for H. Sam's collision (5-2)
7. Eggs may be a movable feast without a sort of lambs' feet (3)
8. Responsibility to people owed a hot drink, say (4)
9. Inferior cartoon? (6,5)
10. Type of heat that is back on the hills will keep us warm at night (10)
11. Lungfishes skinned and prepared for geomancy (4,4)
12. Make lively sharpshooter broadcast 1 across, perhaps (7)
13. Quartet twice saying "Told you so!" (7)
14. Portugese city has wine in glasses (6)
15. News of tungsten or deuterium (4)
16. Argument with alternative is over (3)