Dry, quiet and mischievous (5)
I believe the answer is:
parch
'dry' is the definition.
(parching is a kind of drying)
'quiet and mischievous' is the wordplay.
'quiet' becomes 'p' (music symbol for 'piano').
'and' is a charade indicator (letters next to each other).
'mischievous' becomes 'arch' (I've seen this before).
'p'+'arch'='PARCH'
(Other definitions for parch that I've seen before include "Cause to wither" , "Dehydrate" , "Get overheated" , "Cut off water supply" , "Make hot and dry" .)