Cryptic crossword No 4,112

Across

1. A scene involving a moon of Jupiter in play. (7)
2. String together short article about commercial. (6)
3. Old saying reported to get older. (5)
4. Italian coppers begin to say bigamy is really rather indecent. (6)
5. Speeds vehicle into psychic jumble. (7)
6. Up against she who gave 10 take penny and replace with new change. (8)
7. Not all pathetic excuses take in wife more than once. (5)
8. Fools born, left abandoned, messed around. (6)
9. Market town wives wear less tailored dresses. (8)
10. Takes back key between flower and river without you. (8)
11. Returned gold to base for caviar. (3)
12. Property of can can pursues object of desire. (9)
13. Standard imperial measures a jiffy. (9)
14. Beethoven's third cut after Beethoven's fifth is epic. (6)
15. Scrambled eggs are source of iron. (3)
16. Harder for one playing on the roof to add one more? (8)
17. RnB singer journalist led away. (7)
18. Pet left American swearing. (7)

Down

1. Crane caught long trim figure. (7)
2. They avoid making decisions before TV official or act is changed. (13)
3. Awakes unconscious parts of psyche following start of magic word. (7)
4. Hard to understand trick after confused attempt. (8)
5. Swerve massless bumper car. (5)
6. Infuriated again by mixed up European person that drives you mad. (9)
7. Crazy to evacuate this city (6)
8. I race around to get girl. (5)
9. Artists cold call wild revolutionary. (7)
10. Giving out prize a daughter is protecting. (9)
11. Drug fake grass without small tree. (8)
12. Yellow bird. (7)
13. Poor neighbourhood man in good time books return. (6)