Thanks, Brendan. However, I actually got them both before seeing your post. As you will see if you check the messages, I actually got 10a, and posted about it virtually simultaneously with your post - the same time stamp on both. I also got 2d before seeing your post. I had actually thought of what turns out to be the right answer hours ago, but to me it's 2 letters, not 4. So, with 3 clues that I was stuck on for hours, within almost no time of posting here to say I was stuck, I got them all.