Cryptic crossword No 50

Across

1. Not clued (7)
2. Not clued (7)
3. Underwear by ASOS, oddly unavailable for cash (5)
4. This stepfather beat recoiling stepson heartlessly before start of education (9)
5. Tearful person, changing bearing, shows revolver (9)
6. Girl's note hidden in cathedral (5)
7. Getting on notice, say, to go back inside (4)
8. One embroiled in disposition of ancestor? (8)
9. Church scandal after lorry sheds load in entrance (8)
10. Lively nipper finally gets absorbed in Alex Rider? (4)
11. Musketeer's a duff shot (5)
12. Well-lit place to gather after dark? (9)
13. Gay Texan arranged to catch minicab (9)
14. Woman's bright idea partially knocked back (5)
15. Crooked wound (7)
16. People avoiding boarders with less money up-front? (7)

Down

1. Returning from slums, I buck trend in painting (6)
2. Incredibly, a former prime minister's on the radio alone, scratching head (9)
3. Yarn is fairy-tale bridging supernatural boundaries (5)
4. Images of musical variety artist (9)
5. Unprepossessing Renaissance leaders framed by the German woodcutter (5)
6. Items in recorders' review of test-cases (9)
7. Gradgrind's turned up in two cases to frame suspected murderer's picture (5)
8. Crow, perhaps, he's shot by railway line (6)
9. Gaping hole at the front is filling OK (9)
10. Did again beat around, having put off back to harbour (2-7)
11. Cough medicine in unusual container (9)
12. One to be honoured, on wearing singular knickers? (6)
13. Top marks for mountain bears (6)
14. Beautiful maiden's first period? (5)
15. Curtain I rejected on getting a flat (5)
16. Pound of dripping turned up, the end of the stuffing (5)