Weekend FT 13777

[HenHen]

Stuck on a few, any help appreciated.
10ac - object at the door of the Economist? (7) - S?R?P?R - scraper ? why?
21ac - Deep moulding of country associated with exploding star (6) - ?C?T??
24ac- English swimmer's organ put in to write an article (10) - I?????N??? - indefinite ? why?
19d - Boy's island, one with a gun (8) - ???????N
27,23,26 - Kenneth's job, in charge of arrangement for author of these novels (4,9) - ???N ??????E??

Thanks in advance
Hen Hen

[cupid04]

21] Scotia?

[Lie-in King]

10a Scraper - as one who saves (economist) & a boot-scraper
21a Scotia (moulding) - as with "Nova"...
24a Indefinite - 'E(nglish) fin' [swimmer's organ]) (in) 'indite' (write)
19d Mark's-Man
27, 23, 26 - John Steinbeck - anag 'kenneths job + i(n) c(harge)'

[HenHen]

Thanks Cupid and Lie-in King

[HenHen]

Last one - promise !!
29ac- City visited by St. Paul - picture one with some hesitation (7) - I?O?I?M
iconism, idolism ??? can't follow this at all. Maybe one of the letters is wrong, although they all seem to make sense.
As always, help gratefully received!!
Thanks
HenHen

[roslyn251254]

iconium (icon - picture with some hesitation i um)

[HenHen]

Got it - many thanks. Had not heard of Iconium before, but now I see.