Sunday World Cryptic Tuesday June 28Th 2016

[chess]

am stuck on a few help please 13 ac restrict peoples movements one after another we hear 6 letters I-t--- 16 down finished relaxation in civil defence 6 letters ---s-- 19 down complicated plot about a famous greek 5 letters --a-- 23 ac sole duty I arranged in a monotonous way 9 letters -------l- 14 down get near a mixture used for chemical test 7 letters --a--e-- thanks all

[scorpiojo]

13 Intern (in turn)
19 Plato
23 Tediously

[scorpiojo]

13 ac restrict peoples movements one after another we hear 6 letters I-t---
16 down finished relaxation in civil defence 6 letters ---s--
19 down complicated plot about a famous greek 5 letters --a--
23 ac sole duty I arranged in a monotonous way 9 letters -------l-
14 down get near a mixture used for chemical test 7 letters --a--e--

[Svejk]

16. ceased

[scorpiojo]

14 Reagent

[chess]

thanks very quick response