Cryptic crossword No 2,398

Across

1. Material made from lithium stored by California company (6)
2. Big sister adopts signature move, learning without any effort (7)
3. "Sparkling wine!" gulping bachelor clamours merrily (9)
4. Kingdom of the true master (5)
5. Weapon concealed in narrowboat (5)
6. Perhaps fish are caught in the North East (9)
7. Spooner's small starter is marine algae (7)
8. Bottom clearer? Medic has the advantage!  (6)
9. Posh Victor starts using language affectations regularly... rolled R, perhaps? (6)
10. Earl satisfies the appetite with tea, we hear, in several houses (7)
11. Uses some sets of straps (9)
12. Heavenly creature seen from a different angle (5)
13. Leaves out comma, it's occasionally held redundant in the end (5)
14. Newspaper of great help when circulated (9)
15. Germanium absorbs a little old scientist (7)
16. Journalist on the inside published it originally (6)

Down

1. Storerooms for dictator's suppliers (7)
2. Primate left right after bird (5)
3. Tumblers act as a way of carrying whiskey to scoundrel (9)
4. Fruity finishes to grand do close to chateau... wine, perhaps? (7)
5. Jo ( or one of her sisters) to walk for a month (5)
6. Party of men put on a performance without Edward, hot and tense after knocking back gin (4,5)
7. Mathematician's favourite time of year? (6)
8. Woodlouse, perhaps gets right inside music player (6)
9. Add action word into a laid back part of speech (9)
10. Alienated saint in wild anger over evil diocese leaders (9)
11. Gentleman flips, going over the top for old rice dish (7)
12. Endless lies,say, made up without effort (6)
13. Smelly substance brings element of surprise, starting to upset Ben, perhaps, who is after record (7)
14. Crowd's resistance splits Bruce's footwear (6)
15. Artist's support to provide comfort for student (5)
16. Gift for the president (5)