Cryptic crossword No 4,034

Across

1. Drain that is not emptied yet smart (7)
2. Work halved by mixing glue to sheen (7)
3. Rail jars, the sound is odd (7)
4. Can argue for a trophy (5)
5. Charity not quite set up for untamed pets (9)
6. Chooses to return the shell found in a seaport (6)
7. Coat just covering detective (7)
8. Clearly keen to have sex in exchange for a luxury vacation (7)
9. Sat outside, admitted nub of little penis had dropped off (5)
10. Many old ladies sit oddly, being most haughty (7)
11. End of tongue risks being nibbled outside mouth (6)
12. Maybe heat wave to blame for rash (13)
13. They may have stamped pictures in reverse on parchment but let me see as I’m not sure (9)

Down

1. Right leg shaved after my bush (6)
2. Unable to catch and let run (4)
3. Reading of a cover-up from Africa (4)
4. Pan vs. urinal? Pan first in every respect (9)
5. Each child gets support from myself (10)
6. Dodge the spiky cacti (6)
7. Leave textile lining unfinished and the bottom curls up (4)
8. Look perfectly angelic without lip filler (6)
9. The free jazz joint lost kit needed for accompaniment (8)
10. Duty manager turned tail, is hiding (6)
11. Popular saw; “Good man, support my head instead of my foot” (8)
12. Services in North America exercise routine holds two ways on Latino’s back  (4,5)
13. Barbie’s surface kept losing skin tone (4)
14. Making sense to stop working overtime (6)
15. Assembly farts Dua Lipa’s Levitation when dads leave at the end (5,5)
16. Check last day to change into black suit (6)