Cryptic crossword No 4,089

Across

1. Something afoot? Conservative spreading gossip (7)
2. Local radio say overcoming commercial network set back (8)
3. Walkers after rambling rested in spa (11)
4. Gosh! You basically put your foot in it! (5)
5. Stands by manifesto promises at last! (9)
6. Stock car turned over blocking course (5)
7. Elf in a cobblers left something in boot (7)
8. When eggs are consumed extremely liberally you get wind (8)
9. Ornate, fashionable attire Charlie modelled (9)
10. Land son in boarding school? Flipping excellent! (7)
11. Family digs (5)
12. Weak athletic leg showing atrophy (7)
13. Penalties regularly missed then finally put away (5)

Down

1. Peter heads to the Yard for protection (6)
2. Flight path? (8)
3. Toggle catches on buckle occasionally (7)
4. Fudge made with rare type of sugar (8)
5. Delighted to be married right away (6)
6. "F* off pest!" That makes one move! (8)
7. Prepared star a meal; T-bone? (10)
8. Give idiot big gun discarding every other piece (6)
9. One cellist intermittently raised key (4)
10. Adult knelt briefly rolling joint (5)
11. Call sister after unknown medical procedure (8)
12. Picked up select nibbles (5)
13. Prison officers shot in nuts (10)
14. Coach attendants accompanying queen (7)
15. Small drink knocked back, time for another? (4)
16. Where to see fish dive and pirouette? (6)