Cryptic crossword No 3,689

Across

1. Subpoena, perhaps, disrupted record tour? (5,5)
2. Mercian fellows invading old area (4)
3. On reflection not entirely glamorous, I'm a ritzy confection (8)
4. Proverbial source of smiles at a Chichester resort (8,3)
5. Woke up for Spooner's innocuous insurrection (4,2)
6. Freezing period that is enveloping plastic cage (3,3)
7. Interruption when American follows one in hat (6)
8. Articles describing Stella, confused, disorientated (3,2,3)
9. Barker has patter bringing in audience necessary to begin (7)
10. Greek dairy provides twist of fate (4)
11. Compare prices, and become excited after store's opened? (4,6)
12. Coach writer? (7)
13. Make a killing backing horse (3,3)

Down

1. German chap, outspoken, goes on ahead (4)
2. Haphazard, catastrophic assembly - with parts missing! (7)
3. Opinionated, keen on Franglais tirade? (10)
4. Figure, primarily, every female's future, inevitably meeting heartless guy (6)
5. A radio DJ cut doddering judge (11)
6. Assess software upgrade? (8)
7. Feasible, each viable for redevelopment (10)
8. Highlander, possibly, acts on S & M perversion (8)
9. Follow up drink in France with cake (6)
10. Not your time on the telephone (4)
11. Term of endearment for 7? (3,4)
12. Composer to transport performing individual (6)
13. Charged drunk? (6)