The psychology department at my institution is also more social/cog/neuro-focused, so I've gotten clinical research experience as a research assistant in the Psychiatry department and then went on to get an MSc Psychiatry. I have been accepted into a couple different clinical psyc programs for next fall so I wouldn't worry about it. It is more important to focus on the research experience that you are gaining and how relevant it is to the research area you are hoping to pursue in a Clinical Psychology program later on. The fact that it's in a Psychiatry department doesn't really matter, IMO.