Cryptic crossword No 3,875

Across

1. Perfect example of sequences in transformation keeping time (12)
2. Bending line of unknown composition (7)
3. Nothing hidden in Persian king's photocopies (7)
4. Move abroad, leaving Gateshead for Dubai, say (7)
5. Twist a yarn in piercing jet (4,3)
6. Writhing eel throttles silver bird (5)
7. Absorb the woolly wraparounds (9)
8. It beats Dr Spooner's lithium, for example (4,5)
9. Relish tucking into colossal saveloy (5)
10. Traditional Catholic girl in charge (7)
11. Cry about Universal Time being rejected (4,3)
12. Banger with initially somewhat awkward handling (7)
13. Had salty beer removed and tested for alcohol content (12)
14. Native American sounds like a Jay-Z wannabe with a garden implement (7)

Down

1. Pipes quake loosely onboard steamship (7)
2. Cat suit for gymnast replacing troupe leader with pothead (7)
3. Orally examine someone from central Europe (5)
4. Sounds like trying to make a pot is what the British are good at (7)
5. Close around nameless ape (7)
6. Can the German fight potentially explosive situation? (9)
7. Sex is going over boundaries (5)
8. Formerly more like a count, we hear! (7)
9. Old dandy is someone who steers groom (7)
10. Post personal possessions and there will be consequences (12)
11. Titanic sofas designed for comfort (12)
12. Dog comes after opening of the jars and bolts (5,4)
13. Endlessly pop a query that's more vague (7)
14. Cosmetic feature of Grandma's caravan (7)