Cryptic crossword No 2,898

Across

1. One wearing Lycra manufactured with carbon fiber (7)
2. Bizarre new slogan makes a chilly impression (4,5)
3. Brain activity dreadfully abrupt having consumed four IPAs originally (3,6)
4. Pouch found in vehicle outside restricted area (5)
5. Young Scout recalled important English person from Ohio (7)
6. That thing stuck in front of arena entrance causes stir (7)
7. Bird eggs on flowers (9)
8. Excellent grid for the Listener! (5)
9. Big Bird opening for Kermit with an amusing style of music (4,3,4)
10. Bad leaks leading to large pools of water (5)
11. Greek character Euclid's first to be enthralled by math problems - they have lots of old figures (7)
12. Winning article had inspiring quote at the end (5)
13. Development in Greece: "Men in chaos" (9)

Down

1. More cryptic nonsense about to be penned by our excellent setter, ultimately (8)
2. Doctors drinking whiskey in tumblers? (6)
3. Organization with meatball logo launching tuna salad sandwiches? (4)
4. Raced carelessly around a playground? (6)
5. One not to be trusted with artists' equipment (6)
6. Low feeling after daughter departs (3)
7. Essential part officer reported (6)
8. Application you finally learned (5)
9. I've lost contest (3)
10. Little Rock soccer legend netting billions (6)
11. Revive faulty bot orbiting part of Saturn (5,2)
12. Large cracks edge to edge (5)
13. Selection from musical man acquiring record of the year? (7)
14. Perhaps Holst's van almost overturned after sudden blast of wind (6)
15. Short letter about a company's final purchase for recent delivery (7)
16. Players went ahead and made a defensive move (7)
17. Strange algae and fungi discovered in Java, maybe (8)
18. Pursue missing hospital patient (4)