Cryptic crossword No 3,735

Across

1. Before speaking, one made by 12 the 18 8? (10)
2. Butcher maybe leaves Cleopatra confused, one with vision (6)
3. Jaunt to German spa town experience that one might have after taking acid? (3,4)
4. Youth on the rise, collecting unemployment benefit (10)
5. Four score like a cube? (6)
6. Lacking in iron, I mean, dizzy in air-conditioning (7)
7. King and queen bored by "I'm not sure", usual attitude to originally Asian fruit (7)
8. Earns tip when drunk, carries out another coat (8)
9. Pregnancy stage concealing unwanted pouch (4)
10. Proportion of wins secures cast when upset (7,4)
11. Bikini wet? I cope somehow (3-5)
12. Orange County: peak America in the main, it sucks (7)
13. Ancient penpal returning from Honolulu, apparently (4)

Down

1. Portion of food consumed in untidy lair, one third maybe? (10)
2. Cephalopod loses papers - everything - in sudden storm (6)
3. Roman poet's diary eliminating yours and mine, in favour of uncovered duvet (7)
4. Gives approval, hiding dreadful mess - it's what examiners do (11)
5. Hill's prominent feature sat on scraps of thin zebra printed cloth (6)
6. Mooning over letters from matador in gold (7)
7. Purveyors of TNT etc for animated character making explosive starts (4)
8. A dentist might ask for this scan, with Chlorine over-bathing in sun (7)
9. Cooling device that man puts in suitcase, delivered storage belts round the middle (10)
10. Recklessly tore gift, never mind (6,2)
11. Turning point - cross it (4)
12. Solved - done! Luck? Not exactly (8)
13. Visionary supergroup comprising Korean popstar and Nile Rodgers & co? (7)