Crossword Puzzle Neat prankster?

Clue: Neat prankster?

Neato water sources? (SWELLWELLS with 10 letters)
Prankster's cry (e.g. GOTCHA with 6 letters)
Neat, as a beard (TRIMMED with 7 letters)
No place for a neatnik (e.g. RATHOLE with 7 letters)
Shakespeare's prankster (ARIEL with 5 letters)
To assist him in writing a neat book, the ruler used a __ (SHAHPENNER with 10 letters)
Fits neatly (NESTS with 5 letters)
Team prankster's target, often (ROOKIE with 6 letters)
One who neatens a bed (WEEDER with 6 letters)
Not at all neat (MESSY with 5 letters)