Cryptic crossword No 3,687

Across

1. 11 of 5 down to chase other openings for 29 6-style shop for 27s (6)
2. Supporters of The Carpenters' shows are excited (8)
3. Unfortunate end time, with a nasty affliction (8)
4. Be caught in scam as one of 26 duo setting up 26 11 (6)
5. College initially eclipsing University, po​und for pound (4)
6. Bless me, a mess put together! (8)
7. Except if futile, turn southeast to north (6)
8. Sow in pain, still confined (6)
9. Pennies saved... less paid in such arrangement, drawing in customer initially? (8)
10. Backing novices sent, I ordained some that showed ability (10)
11. Unknown officer previously gave confirmation on the radio (4)
12. Representative setter, doctor, and former monarch (6)
13. Putin's rival sabotaged, put in shade (8)
14. Fill in returning son about king, without fancy embellishments (2,6)
15. What 1 and 26 11 had in 1993 with former German representative (6)
16. Cranked traitor and revolutionary with series of talks (9)

Down

1. Some in Kabul are Taliban returning, or going both ways (9)
2. See 14dn
3. Essentially dissolute star one of 26 duo setting up 26 11 (3)
4. Part of interface where items may be pinned, or a bolt fixed (7)
5. The shop has many but she survives without one (7)
6. Gore goes after one for Shaq (5)
7. Quaver is augmented fourth in complement to the bass (7)
8. Beast is more sexy with top off (5)
9. Home of first 1 in 1983, let loose in pursuit of spot in parliament (7)
10. Perhaps large shop union involved in restructuring of 5 across (9)
11. Anterior bit always included in socket (7)
12. Home of first 26 11 in 1976, that is first of several and that is start of monopoly (3,5)
13. Thus dispatch paper file, destroyed finally! (5)
14. Reich destroyed under it, more bothered by superficial problems (7)
15. Mob battle in extremes of sectarianism (5)
16. Bill includes it by staple attached to top of page (5)