The Spectator Crossword 2063

[grandilo]

Some help will be appreciated for the following, please!
ACROSS
13 Colour of juice ( fruity ) ( 10, two words )
???R??????
23 Top expert gets married ( 4 )
???E

DOWN

2 Dancing monitors start off twisting ( 7 )
?????O?
4 Sound unit of English soldiers heading north ( 6 )
?????E

[bulliver]

23 acme

[bulliver]

2 torsion

[HowardKennitby]

2D torsion

[bibblebub]

13a) petrol blue

4d) foneme

[grandilo]

Thanks for the answers...I am on the way now!