Struggling!
10D Slight change in Scottish harbour, becoming dry (5) s-rs-. (Not convinced my letters are right - sorry!)
5A Strong drink watery after excluding a source of water? (7) bubb?e?
Bubbler, bubbles, bubbled...?
Thanks, Gilly. I realised earlier that I'd made a mistake with at least one of my letters - but it still wasn't enough for me to solve these two clues!