Any help with these clues would be much appreciated. Thank you
10 across- Obama's petulant protest in new Orleans ahead of trade show(6.2 words) HOF???
22 across- Crazy,cold driving mist precedes British downfall(10)?RA???R??N
braindrain?
30 across- Hooch's humour left in pieces(8)???BL??S
7down- Healer who exercises cows is backing Irishman with silence(13)
K????I???????
20 down- Green's fear company in trade association with limited purpose(7)
??O???E