towns and cities in england

[granny helen]

20. containing mercury, perhaps (5) 24. hoedown by the sea (8)
25. Seaplane that sank united in' 79 (10) 30. home of the Giants (12)
37. Sounds like it's used to change PC address (7) 58. Sounds like where Karl gets his salt (6) Any help will be much appreciated I'm so stuck thanks

[DSJ]

58 Would this be Marske?

[Captain2]

25 (Alan) Sunderland scored winning goal in '79 FA Cup final

[granny helen]

Thankyou DSJ and captain2 you have been a big helpxx

[flowers66]

24 Plymouth

[flowers66]

24 Plymouth, 37 Ipswich ?

[Fibonacci]

30 Huddersfield

[granny helen]

Thanks so much flowers66 and fibonacci that just leaves one no 20 my brain started working when i went to bed so I got plymouth well thought it could be but it's nice to get confirmation, thanks againxx

[flowers66]

thanks for your help