Cryptic crossword No 4,080

Across

1. Co-worker goes back and forth (4)
2. Slip away and space out on MDMA (6)
3. Poster introduces Chinese revolutionary sex symbol (6)
4. Credentials redirected, crashing drive partition (7)
5. Sign backing certain limits (10)
6. All that in a minute (4)
7. Insects with constant vitamin deficiency (8)
8. College congress is gender-inclusive (6)
9. Estate gang endlessly holding booze-up? (11)
10. Delivery of beef or seafood (6)
11. Model collection ready for publication (7)
12. Where John Travolta appeared as Danny Gee falling for college swell (8)
13. Work frantically on my temple (10)

Down

1. Broken up and sure to be redeveloped (7)
2. Draw close to Barbarian settlement (4)
3. Takes delight in rescuers ignoring Burrows (7)
4. Offer drink to one short of a full deck in classical Italian tantrum (6)
5. Flower maiden belonging to US island (8)
6. Danger signal upset doctor (10)
7. Joined together and fought, laying aside ego (8)
8. Outfit with flexibility (6)
9. Banker's wife reported naked hippie (11)
10. Pick sweets for audience (6)
11. HUMAN GENOME PROJECT? (3,7)
12. Fragments of poem in Irish Gaelic for the most part (6)
13. Average portion of crème anglaise (4)