Okay. So... sometimes I sit around thinking "what would be a good title". And this one came to mind. I figured what the mechanism would have to be, but... sheesh, getting it all into a grid...
I don't know if this will be hard or ... just not easy. My advice is trust yourself. Even a wrong answer will get you somewhere. It is a small world after all.
Not at all [ur]gent (URANUS)-- IDLE
All [ve]ry (VENUS)-- LEGAL
All [me]ant (MERCURY)-- LET IT GO
All [ma]de up (MARS)-- IMAGINE
All [ea]rly (EARTH)-- PLATO
Not at all [ne]w (NEPTUNE) -- USED
All [sa]fe (Saturn)-- TUCK