I work for a small company with two directors, one of whom is (workshy and) responsible for finance/HR. She has always been keen for a chat (at the expense of doing work) but more and more frequently she talks long and loud across the office when others are trying to work. It is a massive distraction and hindrance to doing anything which requires mental focus, and I know it is bothering people other than just me. I’m relatively senior so I feel like I should address this for the benefit of everyone else but I don’t know how to? I can’t go to HR: she is HR! I’m not particularly tactful and she’s not overly receptive to subtly delivered messages (like use of earplugs, or mention of general office noise as an issue during appraisals etc). Any advice much appreciated!