I would greatly appreciate help with the following clues (Radio Times 6 dated 5 to 11/2/11
"Protection by cops, erect oil refinery" (2 words 6 and 6) L???C? ??????
24 across "Geoff to leave his car in front of prison" (9 letters) ?????????
2 down "$1000 sum " (2 words) ?R?N? ?????
9 down "Wrecked a son's version of US series" (2 words, 7 and 5 ) ?????N? ??E??