Weekends are always going to be a little tricky--- especially during the summer months. I still think this is a nice idea though and lets just see how it goes, i feel it is worth carrying on --- like rossim i was busy this weekend and am away next ---- but hopefully this will be a turnover 'thing with, who's about'.
I however, agree with rambler, off putting/obscure words that have very loose or nigh-on impossible definitions to clue are possibly why people are reluctant to participate.
Just a thought, ----- maybe the weekend peer review could be restricted to phrases rather than just a word? Would this allow more scope and fun for cluing?