Radio Times Crossword 18

[redglenys]

Help please to get started.
1d come across election worker after giving directions [9]
2d translucent flying aphid has a bit of savvy[10]
12a livid about Peruvian heritage [12
18a teacher coming from the classroom [12]
4d mauve artery conceals part of eye [4]
13d wrong-foots battleaxe with circuit breaker[4,6]
23a they mount transport to coastal town [9]
14d people from ItalyandNantes I'vedistressed[9]

[klazomaniac]

4 ma(uve a)rtery

[klazomaniac]

23 Tynemouth (ANAG)

[klazomaniac]

14 Venetians (anag)

[Captain2]

14 Venetians - anagram

[Captain2]

1 encounter

[Captain2]

2 diaphanous

[Captain2]

12 inca-descent

[Captain2]

18 schoolmaster - anagram

[Captain2]

4 uvea - hidden in clue

[klazomaniac]

18 School Master

[redglenys]

sorry clue for 4d is tool to hit under small ridge [12]
I do not understand answer for 4d.

[Captain2]

Ooops, sorry klazo - missed your answer there

[Captain2]

13 Trip s-witch

[Captain2]

New 4d S-ledge-hammer

[klazomaniac]

No Probs Cap't :-)

[klazomaniac]

Original 4d.
Part of eye is Uvea. It is hidden in the first two words.
ma(uve a)rtery

[redglenys]

Thank you all very much.

[redglenys]

just 4 to do please.
8a swan around to infuriate boy going to town [9] ???l?v?n?
16a Tyre of last lunar module repaired[7]?a?i?e?
17d to make home in Scotland island shows candour[7]?o?e?t? honesty?
21d Gentle maiden- yikes [4]m?e? meek?

[cashier]

21 yes m eek

[Neveracrossword]

17. Yes - Nest inside Hoy, Scottish island.