I think it's me! Being obtuse on Sunday evening.
9a I think is BOLE
2d, 4d, 13a I have no idea and the letters I have don't seem to bring up anything helpful on the quicksolve. Any help would be much appreciated. Chris.
Thank you very much Torvic. I had become fixated on the wrong ideas and was digging myself deeper into the hole. Best to go away and return to it with an open mind. Thanks to you, early closure achieved. Regards, Chris.