Well, having no papers today, I am reduced to doing this and I have two left.
1D - A Catalan whore. (7) - B?G?S??
13A - Adjacent to the Scots. (9) - ??A?G?I?E
The last letter of 1D is also the first letter of 13A which may help. Also the I in 13A comes from the first letter of ICONOLOGY which could equally be a P from PHOTOLOGY.
Please excuse me if I don't reply for a few hours, we are just leaving for Film Club which is showing The Draughtsman's Contract tonight.