Cryptic crossword No 3,638

Across

1. Southern wimps are small fry (6)
2. Universal navy vessel (3)
3. Unit won a race (4)
4. Frank, completely unaware, dropped lithium (7)
5. Clothe like John McClane? (6)
6. Straightforward yellow controller (8)
7. Charlie's wood cut - from the shoulder (5,5)
8. Outsider, having lost their head, clobbered pupil (7)
9. Superior king and queen scoffed extravagant tea (7)
10. Encourage City to acquire heartless goalie (4)
11. Run job assignments (10)
12. Outline Balls' opinion (8)
13. Cut back diamond peelers (6)
14. Repeat doctrine of onomatopoeia (7)
15. Male organ somewhat lost heart, so be it (6)
16. A reversal of luck? Yuck! (3)

Down

1. Hear ace broadcasting listener's lament (7)
2. Stylish Teletubby shorthand (4)
3. Aussie pickups left out of stringed instruments (4)
4. Knight with many heads (7)
5. Old god manifested in university reading room (3)
6. ... along with a stylish Anglo-Saxon (2,4,2)
7. Fired up casual Christian cleric with incomplete Hindu holy text (6)
8. Ribald, hearty gathering (6)
9. Switched out site in colourful environment (8)
10. Excessively avoids outer garments (10)
11. Paid company key to their flat at last (6)
12. Farah's stock capital (6)
13. Canal chaos provided clue for Zeus? (4,6)
14. French coinage some of us principally used ... (3)
15. Independent face with union member (7)
16. Pen myth about Lolita (7)