Solve the clues and fill the grid. Each clue is missing a different European capital city.
Across
1. Funny beret men strike $??$ to convene (4)
3. Containers found in a $??$ plaza (4)
5. Ten $??$ site's leaders return after first state, shortly (4)
6. Ethnic group is $??$, locally (4)
7. Dmitry's $??$ chamber first for union's capital (4)
8. Hideout between left and right, return $??$'s finals (4)
9. Certain banks of $??$ river encircle central dome (4)
10. $??$'s extremities leave metals for baseballers (4)
11. Stalk Dorothy's aunt following the heart of $??$ (4)
13. Moody people's fringe expressions outside $??$'s borders (4)
14. Half-heartedly, $??$ first lady makes money (4)
15. In the middle of chaotic $??$, doctor gets cut (4)
16. Asteroid buried in the back country of $??$ (4)
17. Constituents of $??$'s republic passed with flying colours (4)
18. Arrest $??$'s top three; capital punishment follows (4)
19. Listen, Sparta $??$ to be overflowing (4)Down
1. Created the second-to-last little $??$ statue with no rim (4)
2. Wanting an I, $??$ head master leads to transport (4)
3. Friends immediately south of $??$, third one climbing up (4)
4. $??$ couple hides in tube below street under pressure (8)
5. Head of state visits Namib and Gobi for $??$ Fingers, among others (8)
11. $??$'s central assistants preparing leaders for strike (4)
12. $??$'s central trio on top-tier market, briefly (4)
13. Henry IV leaves the last bits of $??$ cheese (4)
Note:
For the purposes of this puzzle I did not include Baku, Nicosia, Tbilisi or Yerevan (all of which could be European depending on which definition one uses).