Cryptic crossword No 3,642

Across

1. Looking back until now, not united within drive to lower taxes (3,5)
2. Toilet in place of volume inside car making something eruptive (7)
3. Smooch couple to get fashion accessory (7)
4. Cleaning lady having one place to sit (5)
5. Not as originally thought? Dream, reportedly great initially, to finish with sound of hesitation (11)
6. A fine fellow utters concerns (7)
7. Case of old flame being sufficient (7)
8. Equip too many guns as way to throw? (7)
9. To write, on reflection, song for god (7)
10. European Union imports fuel regressively as practice (5)
11. Partly recommend Oz actor for South American city (7)
12. Takes a rain check when a cent is missing from neighboring old jars (8)
13. Slightly cold and kind of trendy (7)

Down

1. Most fortunate, quiet ratio hidden in haphazardly haste (8)
2. Up to AI to get involved to make perfect world (6)
3. In shambles, Haiti OK with former emperor (7)
4. Six French and celebrity appear before south-east Asian (10)
5. Melt assets, recycled to make metal towers (5,5)
6. Dinner, say, and fruit (4)
7. Five drowned, or so I've heard (6)
8. Protection dome missing last quarter after fraud (6)
9. Realistic artist and writer involved in harmonic (8)
10. Note written after posh riding vehicle as baggage (6)
11. Lesser than half-hearted roar (5)
12. Journalist under a cover said to have benefitted (7)
13. Flower swallowing upset and infamous marquis (2,4)
14. Student becoming ingredient in dishes in series (6)
15. Left hook primarily hitting tree (5)
16. Collective understood when speaking (4)