Examine quiet dress (5)
I believe the answer is:
probe
'examine' is the definition.
(I know that examine can be written as probe)
'quiet dress' is the wordplay.
'quiet' becomes 'p' (music symbol for 'piano', ie soft or quiet).
'dress' becomes 'robe' (robing is a kind of dressing).
'p'+'robe'='PROBE'
(Other definitions for probe that I've seen before include "sound" , "Poke into" , "Question or examine closely" , "Intrusive device" , "Inquiry" .)