Okay so I'm trying to rank a video on YouTube for a 1-word keyword, instead of a phrase. It has low competition that I can beat for high retntion views/backlinks etc... However I'm not sure how I should optimise my video for a 1 word keyword, apart from I know this word should be the first word in my title and should be mentioned frequently in the description/comments. However, should I have only this word as a tag in my description, should I have a small title so the keyword density for this keyword is high? Any advice would be helpful, cheers.