Cryptic crossword No 3,897

Across

1. Cut down guitarist (5)
2. Not easy shortening director's early product (5,3)
3. Rail endlessly before the French sweet-talk (8)
4. Perhaps a womanizer redirected water behind the dam (7)
5. Crudely locate DNA. Unscientific! (9)
6. Trust us kids to keep a leash on a canine that's gotten out (4)
7. Bogus markers at zebra crossing (6)
8. Are teams found in film? (5)
9. A source of support when going after unknown mystical gem (7)
10. Curry Wolsey's successor for port (9)
11. Strange owl: Lear lacking a pen name (6)
12. New Ager: I go for country (7)
13. Stretching band cancellation after loss of energy (10)
14. Get rid of half a city in Washington for a lizard? (10)
15. Mild expletive principally daffy and really nothing (4)
16. Winter setting for Chicago limited by painless drug (7)

Down

1. Samoa lout upset about homologous chromosomes (9)
2. Docked horse precedes neat calendar event (7)
3. Evens gameboard pattern (7)
4. New user wing start follows commotion (7)
5. Enforcers' long time media franchise (3,3)
6. Attacked hard data after work (3,2)
7. Lover a bare Romeo arranged in an awkward position? (4,1,6)
8. Beluga relative distinguished by a single 9 (7)
9. Short apostle in charge of Jewish tradition? (6)
10. Scrape empty form of ardent spirits (5)
11. Fancy pigeon with silver in for pound loaf (8)
12. Parrot with blunder for uninitiated sailor (8)
13. Untouchable ace crowds out of place (6,3)