1 What logo?
http://www.atomic-album.com/showPic.php/22367/ logo.JPG Capital cities
2 Islamic mystic has nothing to replace upper-class article (5)
3 Activate oil mixture (7)
4 Comb and clean one loudly in the UK (7)
5 Compete eagerly for points, finishing with top grade in Europe (6)
Butterflies
6 Turn up after endless bell-ringing (7)
7 Edges to north-east,initially; probably seen early (9)
Artists,Painters,Sculptors
8 Secures heraldic gold found in branch (12)
9 Chew noisily in English (5)
10 Reportedly a country prophet of Victorian times (8)
Thanks for any help